{"id":1349,"date":"2015-02-01T14:29:32","date_gmt":"2015-02-01T06:29:32","guid":{"rendered":"http:\/\/www.menglanglang.cn\/?p=1349"},"modified":"2022-11-16T09:41:17","modified_gmt":"2022-11-16T01:41:17","slug":"mysql5-x-x%e5%ad%98%e5%82%a8%e8%bf%87%e7%a8%8b%e7%ae%80%e5%8d%95%e5%85%a5%e9%97%a8","status":"publish","type":"post","link":"http:\/\/www.menglanglang.cn\/?p=1349","title":{"rendered":"MySQL5.x.x\u5b58\u50a8\u8fc7\u7a0b\u7b80\u5355\u5165\u95e8"},"content":{"rendered":"

\u5b58\u50a8\u8fc7\u7a0b\u662f\u4e00\u79cd\u5b58\u50a8\u5728\u6570\u636e\u5e93\u4e2d\u7684\u7a0b\u5e8f\uff0c\u5c31\u50cf\u662f\u6b63\u89c4\u8bed\u8a00\u4e2d\u7684\u5b50\u7a0b\u5e8f\u3002\u6211\u4eec\u5e38\u7528\u7684\u64cd\u4f5c\u6570\u636e\u5e93\u8bed\u8a00\u00a0SQL\u00a0<\/span>\u8bed\u53e5\u5728\u6267\u884c\u7684\u65f6\u5019\u9700\u8981\u8981\u5148\u7f16\u8bd1\uff0c\u7136\u540e\u6267\u884c\uff0c\u800c\u5b58\u50a8\u8fc7\u7a0b\uff08Stored Procedure<\/span>\uff09\u662f\u4e00\u7ec4\u4e3a\u4e86\u5b8c\u6210\u7279\u5b9a\u529f\u80fd\u7684\u00a0SQL\u00a0<\/span>\u8bed\u53e5\u96c6\uff0c\u7ecf\u7f16\u8bd1\u540e\u5b58\u50a8\u5728\u6570\u636e\u5e93\u4e2d\uff0c\u7528\u6237\u901a\u8fc7\u6307\u5b9a\u5b58\u50a8\u8fc7\u7a0b\u7684\u540d\u5b57\u5e76\u7ed9\u5b9a\u53c2\u6570\uff08\u5982\u679c\u8be5\u5b58\u50a8\u8fc7\u7a0b\u5e26\u6709\u53c2\u6570\u7684\u8bdd\uff09\u6765\u8c03\u7528\u6267\u884c\u5b83\u3002<\/span><\/p>\n

MySQL \u652f\u6301\u7684\u201c routines\uff08\u4f8b\u7a0b\uff09\u201d\u6709\u4e24\u79cd\uff1a\u4e00\u79cd\u662f\u6211\u4eec\u8bf4\u7684\u5b58\u50a8\u8fc7\u7a0b\uff0c \u53e6\u5916\u4e00\u79cd\u662f\u5728\u5176\u4ed6 SQL \u8bed\u53e5\u4e2d\u53ef\u4ee5\u8fd4\u56de\u503c\u7684\u51fd\u6570\uff0c\u4f7f\u7528\u8d77\u6765\u548c MySQL\u00a0\u9884\u88c5\u8f7d\u7684\u51fd\u6570\u4e00\u6837\uff0c\u5982 pi()\u3002\u4e00\u4e2a\u5b58\u50a8\u8fc7\u7a0b\u5305\u62ec\u540d\u5b57\uff0c\u53c2\u6570\u5217\u8868\uff0c\u4ee5\u53ca\u53ef\u4ee5\u5305\u62ec\u5f88\u591a SQL \u8bed\u53e5\u7684 SQL \u8bed\u53e5\u96c6\u3002
\n<\/span><\/p>\n

\u90a3\u4e48\u4ec0\u4e48\u60c5\u51b5\u4e0b\u9700\u8981\u7528\u5230\u5b58\u50a8\u8fc7\u7a0b\u5462\uff1f\u5f53\u4f60\u9700\u8981\u5904\u7406\u7684\u662f\u9700\u8981\u68c0\u67e5\u3001\u5faa\u73af\u3001\u591a\u8bed\u53e5\u4f46\u6ca1\u6709\u7528\u6237\u4ea4\u4e92\u7684\u91cd\u590d\u6027\u4efb\u52a1\u65f6\uff0c\u4f60\u5c31\u53ef\u4ee5\u4f7f\u7528\u4fdd\u5b58\u5728\u670d\u52a1\u5668\u4e0a\u7684\u5b58\u50a8\u8fc7\u7a0b\u6765\u5b8c\u6210\u3002\u8fd9\u6837\u5728\u6267\u884c\u4efb\u52a1\u7684\u6bcf\u4e00\u6b65\u65f6\uff0c\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u4e4b\u95f4\u5c31\u6ca1\u90a3\u4e48\u591a\u7684\u4fe1\u606f\u6765\u5f80\u4e86\u3002<\/p>\n

\u60f3\u8981\u5728\u5b89\u88c5\u7684 MySQL \u4e0a\u6d4b\u8bd5\u5b58\u50a8\u8fc7\u7a0b\uff0c\u5fc5\u987b\u5f97\u4fdd\u8bc1\u5b89\u88c5\u7684 MySQL \u7248\u672c\u662f 5.0 \u4ee5\u4e0a\uff0c\u56e0\u4e3a 5.0 \u4e4b\u524d\u7684 MySQL\u7248\u672c\u4e0d\u652f\u6301\u5b58\u50a8\u8fc7\u7a0b\u7684\u529f\u80fd\uff0c\u7531\u4e8e\u5176\u5b83\u6570\u636e\u5e93\u90fd\u6709\u5b58\u50a8\u8fc7\u7a0b\uff0c\u8fd9\u4f7f\u5f97\u00a05.0 \u4e4b\u524d\u7684 MySQL\u00a0\u7248\u672c\u7684\u4f7f\u7528\u5927\u6253\u6298\u6263\u3002\u56e0\u6b64\uff0c\u81ea MySQL 5.0 \u4e4b\u540e\u7684\u7248\u672c\u52a0\u5165\u4e86\u5b58\u50a8\u8fc7\u7a0b\u8fd9\u4e00\u529f\u80fd\u3002\u6240\u4ee5\u5728\u5b66\u4e60\u5b58\u50a8\u8fc7\u7a0b\u4e4b\u524d\uff0c\u5148\u68c0\u67e5\u4e00\u4e0b MySQL \u7684\u7248\u672c\u3002<\/p>\n

\n
\n
Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
    \n
  1. mysql>\u00a0<\/span>select<\/span>\u00a0version();\u00a0\u00a0<\/span><\/span><\/li>\n
  2. +-----------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
  3. |\u00a0version()\u00a0|\u00a0\u00a0<\/span><\/li>\n
  4. +-----------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
  5. |\u00a05.7.4-m14\u00a0|\u00a0\u00a0<\/span><\/li>\n
  6. +-----------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
  7. 1\u00a0row\u00a0in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

    \u6216\u8005\u7528\u4e0b\u9762\u7684\u8bed\u53e5\u4e5f\u53ef\u4ee5\u67e5\u8be2\u7248\u672c\uff1a<\/span><\/strong><\/p>\n

    \n
    \n
    Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
      \n
    1. mysql>\u00a0show\u00a0variables\u00a0<\/span>like<\/span>\u00a0'version';\u00a0\u00a0<\/span><\/span><\/li>\n
    2. +---------------+-----------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
    3. |\u00a0Variable_name\u00a0|\u00a0Value\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
    4. +---------------+-----------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
    5. |\u00a0version\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a05.7.4-m14\u00a0|\u00a0\u00a0<\/span><\/li>\n
    6. +---------------+-----------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
    7. 1\u00a0row\u00a0in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

      \u6ce8\u610f\uff1aMySQL \u8bed\u53e5\u5bf9\u5927\u5c0f\u5199\u4e0d\u654f\u611f\uff0c\u56e0\u6b64\u8bed\u53e5\u4e5f\u53ef\u4ee5\u662f\u5927\u5199\u7684\uff0c\u6bd4\u5982\u00a0SELECT VERSION();<\/strong><\/span><\/p>\n

      \u521b\u5efa\u4e00\u4e2a\u6d4b\u8bd5\u6570\u636e\u5e93 test\uff0c\u7528\u6765\u5b66\u4e60\u5b58\u50a8\u8fc7\u7a0b\u3002<\/strong><\/p>\n

      \n
      \n
      Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
        \n
      1. mysql>\u00a0<\/span>create<\/span>\u00a0<\/span>database<\/span>\u00a0test;\u00a0\u00a0<\/span><\/span><\/li>\n
      2. Query\u00a0OK,\u00a01\u00a0row\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/li>\n
      3. \u00a0\u00a0<\/span><\/li>\n
      4. mysql>\u00a0use\u00a0test;\u00a0\u00a0<\/span><\/li>\n
      5. Database<\/span>\u00a0changed\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

        \u5728 test \u6570\u636e\u5e93\u4e2d\uff0c\u521b\u5efa\u4e00\u5f20\u8868 t\uff0c\u5e76\u63d2\u5165\u4e00\u6761\u7b80\u5355\u7684\u6570\u636e\u3002<\/strong><\/p>\n

        \n
        \n
        Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
          \n
        1. mysql>\u00a0<\/span>create<\/span>\u00a0<\/span>table<\/span>\u00a0t\u00a0(s1\u00a0<\/span>int<\/span>);\u00a0\u00a0<\/span><\/span><\/li>\n
        2. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.05\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
        3. \u00a0\u00a0<\/span><\/li>\n
        4. mysql>\u00a0insert<\/span>\u00a0<\/span>into<\/span>\u00a0t\u00a0<\/span>values<\/span>\u00a0(5);\u00a0\u00a0<\/span><\/span><\/li>\n
        5. Query\u00a0OK,\u00a01\u00a0row\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/li>\n<\/ol>\n<\/div>\n

          \u63a5\u4e0b\u6765\uff0c\u9009\u62e9\u5206\u9694\u7b26\u3002\u5206\u9694\u7b26\u662f\u901a\u77e5 mysql \u5ba2\u6237\u7aef\uff0c\u5df2\u7ecf\u5b8c\u6210\u8f93\u5165\u4e00\u4e2a SQL \u8bed\u53e5\u7684\u5b57\u7b26\u6216\u5b57\u7b26\u4e32\u7b26\u53f7\u3002\u4e00\u76f4\u4ee5\u6765\uff0c\u6211\u4eec\u90fd\u4f7f\u7528\u5206\u53f7\u201c\uff1b \u201d\uff0c\u4f46\u5728\u5b58\u50a8\u8fc7\u7a0b\u4e2d\uff0c\u8fd9\u4f1a\u4ea7\u751f\u4e0d\u5c11\u95ee\u9898\uff0c\u56e0\u4e3a\u5b58\u50a8\u8fc7\u7a0b\u4e2d\u6709\u8bb8\u591a\u8bed\u53e5\uff0c\u6240\u4ee5\u6bcf\u4e00\u4e2a\u90fd\u9700\u8981\u4e00\u4e2a\u5206\u53f7\u3002\u56e0\u6b64\u9700\u8981\u9009\u62e9\u4e00\u4e2a\u4e0d\u592a\u53ef\u80fd\u51fa\u73b0\u5728 SQL \u8bed\u53e5\u6216\u7a0b\u5e8f\u4e2d\u7684\u5b57\u7b26\u4e32\u4f5c\u4e3a\u5206\u9694\u7b26\u3002\u6bd4\u5982\u201c|\u201d\u3001\u201c@\u201d\u3001\u201c\/\/\u201d\u7b49\u3002\u5728\u8fd9\u91cc\u5c31\u4f7f\u7528\u201c\/\/\u201d\u3002\u8bbe\u7f6e\u5206\u9694\u7b26\u7684 SQL \u8bed\u53e5\u5982\u4e0b\uff1a
          \nmysql> delimiter \/\/<\/code><\/p>\n

          \u4e0b\u9762\uff0c\u5173\u952e\u7684\u65f6\u523b\u6765\u4e86\uff0c\u521b\u5efa\u7b2c\u4e00\u4e2a\u5b58\u50a8\u8fc7\u7a0b\u5427\u3002<\/strong><\/p>\n

          \n
          \n
          Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
            \n
          1. mysql>\u00a0<\/span>create<\/span>\u00a0<\/span>procedure<\/span>\u00a0p1\u00a0()\u00a0<\/span>select<\/span>\u00a0*\u00a0<\/span>from<\/span>\u00a0t;\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
          2. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

            \u89e3\u91ca\u4e0a\u9762\u7684\u5b58\u50a8\u8fc7\u7a0b\uff1a<\/strong><\/p>\n

            \u521b\u5efa\u5b58\u50a8\u8fc7\u7a0b\u7684\u5173\u952e\u5b57\u662f\u00a0create\u00a0procedure\uff0c\u5b58\u50a8\u8fc7\u7a0b\u540d\u662f p1\uff08\u5907\u6ce8\uff1a\u5b58\u50a8\u8fc7\u7a0b\u540d\u5c31\u50cf SQL \u8bed\u53e5\u4e00\u6837\uff0c\u5bf9\u5927\u5c0f\u5199\u4e0d\u654f\u611f\uff0c\u56e0\u6b64\u2018P1\u2019\u548c\u2018p1\u2019\u662f\u540c\u4e00\u4e2a\u540d\u5b57\uff0c\u5728\u540c\u4e00\u4e2a\u6570\u636e\u5e93\u4e2d\u4e0d\u80fd\u7ed9\u4e24\u4e2a\u5b58\u50a8\u8fc7\u7a0b\u53d6\u76f8\u540c\u7684\u540d\u5b57\uff0c\u56e0\u4e3a\u8fd9\u6837\u5c06\u4f1a\u5bfc\u81f4\u91cd\u8f7d\u3002\u67d0\u4e9bDBMS\u5141\u8bb8\u91cd\u8f7d\uff08Oracle\u652f\u6301\uff09\uff0c\u4f46\u662fMySQL\u4e0d\u652f\u6301\u3002 \u53ef\u4ee5\u91c7\u53d6\u201c\u6570\u636e\u5e93\u540d.\u5b58\u50a8\u8fc7\u7a0b\u540d\u201d\u8fd9\u6837\u7684\u6298\u4e2d\u65b9\u6cd5\uff0c\u5982\u201c test.p1\u201d\u3002\u5b58\u50a8\u8fc7\u7a0b\u540d\u53ef\u4ee5\u5206\u5f00\uff0c \u5b83\u53ef\u4ee5\u5305\u62ec\u7a7a\u683c\u7b26\uff0c\u5176\u957f\u5ea6\u9650\u5236\u4e3a 64 \u4e2a\u5b57\u7b26\uff0c\u4f46\u6ce8\u610f\u4e0d\u8981\u4f7f\u7528 MySQL \u5185\u5efa\u51fd\u6570\u7684\u540d\u5b57\u3002<\/span>\uff09\uff0c\u8bed\u53e5\u4e2d p1 \u540e\u9762\u7684\u62ec\u53f7\u662f\u53c2\u6570\u5217\u8868\uff0c\u6ca1\u6709\u53c2\u6570\u7684\u60c5\u51b5\u4e0b\u62ec\u53f7\u9700\u4fdd\u7559\u3002\u62ec\u53f7\u540e\u5230\u201c\/\/\u201d\u524d\uff0c\u662f\u5b58\u50a8\u8fc7\u7a0b\u7684\u4e3b\u4f53\u3002<\/p>\n

            \u63a5\u4e0b\u6765\u5c31\u8c03\u7528\u4e0a\u9762\u521b\u5efa\u7684\u5b58\u50a8\u8fc7\u7a0b\u3002<\/strong><\/p>\n

            \n
            \n
            Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
              \n
            1. mysql>\u00a0call\u00a0p1\u00a0()\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
            2. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
            3. |\u00a0s1\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
            4. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
            5. |\u00a0\u00a0\u00a0\u00a05\u00a0|\u00a0\u00a0<\/span><\/li>\n
            6. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
            7. 1\u00a0row\u00a0in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
            8. \u00a0\u00a0<\/span><\/li>\n
            9. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

              \u53cd\u6620\u5b58\u50a8\u8fc7\u7a0b\u7279\u6027\u7684\u5b50\u53e5\u2014\u2014\u7279\u5f81\u5b50\u53e5\u3002<\/strong><\/p>\n

              \n
              \n
              Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
                \n
              1. mysql>\u00a0<\/span>create<\/span>\u00a0<\/span>procedure<\/span>\u00a0p2()\u00a0\u00a0\u00a0<\/span><\/span><\/li>\n
              2. \u00a0\u00a0\u00a0\u00a0->\u00a0LANGUAGE\u00a0SQL \u00a0\/* \u8bf4\u660e\u4e0b\u9762\u8fc7\u7a0b\u7684\u4e3b\u4f53\u4f7f\u7528SQL\u8bed\u8a00\u7f16\u5199\u00a0*\/<\/span><\/li>\n
              3. \u00a0\u00a0\u00a0\u00a0->\u00a0NOT<\/span>\u00a0DETERMINISTIC\u00a0\u00a0\/* \u4f20\u9012\u7ed9\u7cfb\u7edf\u7684\u4fe1\u606f\u00a0*\/<\/span><\/span><\/li>\n
              4. \u00a0\u00a0\u00a0\u00a0->\u00a0SQL\u00a0SECURITY\u00a0DEFINER\u00a0\u00a0\/* \u8be6\u7ec6\u89e3\u91ca\u7ee7\u7eed\u5411\u4e0b\u770b\u00a0*\/<\/span><\/li>\n
              5. \u00a0\u00a0\u00a0\u00a0->\u00a0COMMENT\u00a0'A\u00a0Procedure<\/span>'\u00a0\u00a0\/* \u53ef\u9009\u7684\u6ce8\u91ca\u8bf4\u660e\u00a0*\/<\/span><\/span><\/li>\n
              6. \u00a0\u00a0\u00a0\u00a0->\u00a0select<\/span>\u00a0<\/span>CURRENT_DATE<\/span>,\u00a0RAND()\u00a0<\/span>from<\/span>\u00a0t\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
              7. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
              8. \u00a0\u00a0<\/span><\/li>\n
              9. mysql>\u00a0call\u00a0p2()\/\/\u00a0\u00a0<\/span><\/li>\n
              10. +--------------+---------------------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
              11. |\u00a0CURRENT_DATE<\/span>\u00a0|\u00a0RAND()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
              12. +--------------+---------------------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
              13. |\u00a02015-01-31\u00a0\u00a0\u00a0|\u00a00.19683208334895977\u00a0|\u00a0\u00a0<\/span><\/li>\n
              14. +--------------+---------------------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
              15. 1\u00a0row\u00a0in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
              16. \u00a0\u00a0<\/span><\/li>\n
              17. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

                SQL SECURITY\uff0c\u53ef\u4ee5\u5b9a\u4e49\u4e3a SQL SECURITY DEFINER \u6216 SQL SECURITY\u00a0INVOKER\u3002 \u8fd9\u5c31\u8fdb\u5165\u4e86\u6743\u9650\u63a7\u5236\u7684\u9886\u57df\u4e86\u3002SQL SECURITY DEFINER \u610f\u5473\u7740\u5728\u8c03\u7528\u65f6\u68c0\u67e5\u521b\u5efa\u8fc7\u7a0b\u7528\u6237\u7684\u6743\u9650\uff0cSQL\u00a0SECURITY INVOKER \u610f\u5473\u7740\u4e00\u76f4\u4f1a\u68c0\u67e5\u7528\u6237\u7684\u6743\u9650\u3002\u4f7f\u7528 SQL SECURITY DEFINER \u6307\u4ee4\u544a\u8bc9 MySQL \u670d\u52a1\u5668\u68c0\u67e5\u521b\u5efa\u8fc7\u7a0b\u7684\u7528\u6237\u5c31\u53ef\u4ee5\u4e86\uff0c\u5f53\u8fc7\u7a0b\u5df2\u7ecf\u88ab\u8c03\u7528\uff0c\u5c31\u4e0d\u68c0\u67e5\u6267\u884c\u8c03\u7528\u8fc7\u7a0b\u7684\u7528\u6237\u4e86\u3002\u800cSQL SECURITY\u00a0INVOKER\u00a0\u5219\u662f\u544a\u8bc9\u670d\u52a1\u5668\u5728\u8fd9\u4e00\u6b65\u4ecd\u7136\u8981\u68c0\u67e5\u8c03\u7528\u8005\u7684\u6743\u9650\u3002<\/p>\n

                \u73b0\u5728\uff0c\u8be6\u7ec6\u89e3\u91ca\u4e00\u4e0b\u5b58\u50a8\u8fc7\u7a0b\u7684\u53c2\u6570\u3002<\/strong><\/p>\n

                \n
                \n
                Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
                  \n
                1. 1.\u00a0<\/span>CREATE<\/span>\u00a0<\/span>PROCEDURE<\/span>\u00a0p()\u00a0...\u00a0\u00a0<\/span><\/span><\/li>\n
                2. 2.\u00a0CREATE<\/span>\u00a0<\/span>PROCEDURE<\/span>\u00a0p([<\/span>IN<\/span>]\u00a0<\/span>name<\/span>\u00a0data-type)\u00a0...\u00a0\u00a0<\/span><\/span><\/li>\n
                3. 3.\u00a0CREATE<\/span>\u00a0<\/span>PROCEDURE<\/span>\u00a0p(<\/span>OUT<\/span>\u00a0<\/span>name<\/span>\u00a0data-type)\u00a0...\u00a0\u00a0<\/span><\/span><\/li>\n
                4. 4.\u00a0CREATE<\/span>\u00a0<\/span>PROCEDURE<\/span>\u00a0p(INOUT\u00a0<\/span>name<\/span>\u00a0data-type)\u00a0...\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

                  \u4e0a\u9762\u7684\u53c2\u6570\u4e2d\uff0cIN \u662f\u53ef\u4ee5\u7701\u7565\u7684\uff0c\u56e0\u4e3a\u5b58\u50a8\u8fc7\u7a0b\u5982\u679c\u6709\u53c2\u6570\uff0c\u9ed8\u8ba4\u4e3a IN\u3002IN \u8f93\u5165\u53c2\u6570\uff0c\u8868\u793a\u8be5\u53c2\u6570\u7684\u503c\u5fc5\u987b\u5728\u8c03\u7528\u5b58\u50a8\u8fc7\u7a0b\u65f6\u6307\u5b9a\uff0c\u5728\u5b58\u50a8\u8fc7\u7a0b\u4e2d\u4fee\u6539\u8be5\u53c2\u6570\u7684\u503c\u4e0d\u80fd\u88ab\u8fd4\u56de\uff0c\u8fd8\u662f\u4e3a\u539f\u6765\u7684\u503c\uff1bOUT \u8f93\u51fa\u53c2\u6570\uff0c\u8be5\u503c\u53ef\u4ee5\u5728\u5b58\u50a8\u8fc7\u7a0b\u5185\u90e8\u88ab\u6539\u53d8\uff0c\u5e76\u53ef\u8fd4\u56de\uff1bINOUT \u8f93\u5165\u8f93\u51fa\u53c2\u6570\uff0c\u8be5\u503c\u5728\u8c03\u7528\u65f6\u6307\u5b9a\uff0c\u5728\u5b58\u50a8\u8fc7\u7a0b\u5185\u90e8\u88ab\u6539\u53d8\u540e\uff0c\u53ef\u4ee5\u8fd4\u56de\uff0c\u4e3a\u6539\u53d8\u540e\u7684\u503c\u3002\u4e0b\u9762\u770b\u51e0\u4e2a\u901a\u4fd7\u6613\u61c2\u7684\u8be6\u7ec6\u4f8b\u5b50\u3002<\/strong><\/p>\n

                  IN \u8f93\u5165\u7684\u4f8b\u5b50\uff1a<\/strong><\/p>\n

                  \n
                  \n
                  Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
                    \n
                  1. mysql>\u00a0<\/span>create<\/span>\u00a0<\/span>procedure<\/span>\u00a0demo_in_parameter(<\/span>IN<\/span>\u00a0p_in\u00a0<\/span>int<\/span>)\u00a0\u00a0<\/span><\/span><\/li>\n
                  2. \u00a0\u00a0\u00a0\u00a0->\u00a0begin<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                  3. \u00a0\u00a0\u00a0\u00a0->\u00a0select<\/span>\u00a0p_in;\u00a0\u00a0<\/span><\/span><\/li>\n
                  4. \u00a0\u00a0\u00a0\u00a0->\u00a0set<\/span>\u00a0p_in=2;\u00a0\u00a0<\/span><\/span><\/li>\n
                  5. \u00a0\u00a0\u00a0\u00a0->\u00a0select<\/span>\u00a0p_in;\u00a0\u00a0<\/span><\/span><\/li>\n
                  6. \u00a0\u00a0\u00a0\u00a0->\u00a0end<\/span>\u00a0\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                  7. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                  8. \u00a0\u00a0<\/span><\/li>\n
                  9. mysql>\u00a0set<\/span>\u00a0@p_in=1\u00a0\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                  10. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                  11. \u00a0\u00a0<\/span><\/li>\n
                  12. mysql>\u00a0call\u00a0demo_in_parameter(@p_in)\u00a0\/\/\u00a0\u00a0<\/span><\/li>\n
                  13. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                  14. |\u00a0p_in\u00a0|\u00a0\u00a0<\/span><\/li>\n
                  15. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                  16. |\u00a0\u00a0\u00a0\u00a01\u00a0|\u00a0\u00a0<\/span><\/li>\n
                  17. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                  18. 1\u00a0row\u00a0in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                  19. \u00a0\u00a0<\/span><\/li>\n
                  20. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                  21. |\u00a0p_in\u00a0|\u00a0\u00a0<\/span><\/li>\n
                  22. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                  23. |\u00a0\u00a0\u00a0\u00a02\u00a0|\u00a0\u00a0<\/span><\/li>\n
                  24. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                  25. 1\u00a0row\u00a0in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                  26. \u00a0\u00a0<\/span><\/li>\n
                  27. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                  28. <\/li>\n
                  29. mysql> select @p_in \/\/<\/span><\/span><\/li>\n
                  30. +--------+ <\/span><\/span><\/li>\n
                  31. | @p_in |<\/span><\/span><\/li>\n
                  32. +--------+<\/span><\/span><\/li>\n
                  33. | \u00a0 \u00a0 \u00a0 \u00a0 1 |<\/span><\/span><\/li>\n
                  34. +--------+<\/span><\/span><\/li>\n
                  35. 1 row in set (0.00 sec)<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

                    OUT \u8f93\u51fa\u7684\u4f8b\u5b50\uff1a<\/span><\/strong><\/p>\n

                    \n
                    \n
                    Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
                      \n
                    1. mysql>\u00a0<\/span>create<\/span>\u00a0<\/span>procedure<\/span>\u00a0demo_out_parameter(<\/span>OUT<\/span>\u00a0p_out\u00a0<\/span>int<\/span>)\u00a0\u00a0<\/span><\/span><\/li>\n
                    2. \u00a0\u00a0\u00a0\u00a0->\u00a0begin<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                    3. \u00a0\u00a0\u00a0\u00a0->\u00a0select<\/span>\u00a0p_out;\u00a0\u00a0<\/span><\/span><\/li>\n
                    4. \u00a0\u00a0\u00a0\u00a0->\u00a0set<\/span>\u00a0p_out=2;\u00a0\u00a0<\/span><\/span><\/li>\n
                    5. \u00a0\u00a0\u00a0\u00a0->\u00a0select<\/span>\u00a0p_out;\u00a0\u00a0<\/span><\/span><\/li>\n
                    6. \u00a0\u00a0\u00a0\u00a0->\u00a0end<\/span>\u00a0\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                    7. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                    8. \u00a0\u00a0<\/span><\/li>\n
                    9. mysql>\u00a0set<\/span>\u00a0@p_out=1\u00a0\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                    10. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                    11. \u00a0\u00a0<\/span><\/li>\n
                    12. mysql>\u00a0call\u00a0demo_out_parameter(@p_out)\u00a0\/\/\u00a0\u00a0<\/span><\/li>\n
                    13. +-------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                    14. |\u00a0p_out\u00a0|\u00a0\u00a0<\/span><\/li>\n
                    15. +-------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                    16. |\u00a0\u00a0NULL<\/span>\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                    17. +-------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                    18. 1\u00a0row\u00a0in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                    19. \u00a0\u00a0<\/span><\/li>\n
                    20. +-------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                    21. |\u00a0p_out\u00a0|\u00a0\u00a0<\/span><\/li>\n
                    22. +-------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                    23. |\u00a0\u00a0\u00a0\u00a0\u00a02\u00a0|\u00a0\u00a0<\/span><\/li>\n
                    24. +-------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                    25. 1\u00a0row\u00a0in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                    26. \u00a0\u00a0<\/span><\/li>\n
                    27. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                    28. w<\/span><\/span><\/li>\n
                    29. mysql> select @p_out \/\/<\/span><\/span><\/li>\n
                    30. +----------+\u00a0<\/span><\/span><\/li>\n
                    31. | @p_out |\u00a0<\/span><\/span><\/li>\n
                    32. +----------+\u00a0<\/span><\/span><\/li>\n
                    33. | \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 2 |\u00a0<\/span><\/span><\/li>\n
                    34. +----------+\u00a0<\/span><\/span><\/li>\n
                    35. 1 row in set (0.00 sec)\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

                      INOUT \u8f93\u5165\u8f93\u51fa\u7684\u4f8b\u5b50\uff1a<\/strong><\/p>\n

                      \n
                      \n
                      Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
                        \n
                      1. mysql>\u00a0<\/span>create<\/span>\u00a0<\/span>procedure<\/span>\u00a0demo_inout_parameter(INOUT\u00a0p_inout\u00a0<\/span>int<\/span>)\u00a0\u00a0<\/span><\/span><\/li>\n
                      2. \u00a0\u00a0\u00a0\u00a0->\u00a0begin<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                      3. \u00a0\u00a0\u00a0\u00a0->\u00a0select<\/span>\u00a0p_inout;\u00a0\u00a0<\/span><\/span><\/li>\n
                      4. \u00a0\u00a0\u00a0\u00a0->\u00a0set<\/span>\u00a0p_inout=2;\u00a0\u00a0<\/span><\/span><\/li>\n
                      5. \u00a0\u00a0\u00a0\u00a0->\u00a0select<\/span>\u00a0p_inout;\u00a0\u00a0<\/span><\/span><\/li>\n
                      6. \u00a0\u00a0\u00a0\u00a0->\u00a0end<\/span>\u00a0\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                      7. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                      8. \u00a0\u00a0<\/span><\/li>\n
                      9. mysql>\u00a0set<\/span>\u00a0@p_inout=1\u00a0\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                      10. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                      11. \u00a0\u00a0<\/span><\/li>\n
                      12. mysql>\u00a0call\u00a0demo_inout_parameter(@p_inout)\u00a0\/\/\u00a0\u00a0<\/span><\/li>\n
                      13. +---------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                      14. |\u00a0p_inout\u00a0|\u00a0\u00a0<\/span><\/li>\n
                      15. +---------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                      16. |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a01\u00a0|\u00a0\u00a0<\/span><\/li>\n
                      17. +---------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                      18. 1\u00a0row\u00a0in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                      19. \u00a0\u00a0<\/span><\/li>\n
                      20. +---------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                      21. |\u00a0p_inout\u00a0|\u00a0\u00a0<\/span><\/li>\n
                      22. +---------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                      23. |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a02\u00a0|\u00a0\u00a0<\/span><\/li>\n
                      24. +---------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                      25. 1\u00a0row\u00a0in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                      26. \u00a0\u00a0<\/span><\/li>\n
                      27. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                      28. \u00a0\u00a0<\/span><\/li>\n
                      29. mysql>\u00a0select<\/span>\u00a0@p_inout\u00a0\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                      30. +----------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                      31. |\u00a0@p_inout\u00a0|\u00a0\u00a0<\/span><\/li>\n
                      32. +----------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                      33. |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a02\u00a0|\u00a0\u00a0<\/span><\/li>\n
                      34. +----------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                      35. 1\u00a0row\u00a0in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

                        \u5728\u8fd9\u91cc\uff0c\u987a\u4fbf\u8bf4\u4e00\u4e0b MySQL \u5b58\u50a8\u8fc7\u7a0b\u7684\u6ce8\u91ca\u65b9\u5f0f\uff0c\u4e3b\u8981\u6709\u4e09\u79cd\uff1a<\/p>\n

                        -- \u9700\u8981\u6ce8\u91ca\u7684\u90e8\u5206\uff1a\u7528\u4e8e\u5355\u884c\u6ce8\u91ca\uff1b<\/p>\n

                        #\u00a0\u9700\u8981\u6ce8\u91ca\u7684\u90e8\u5206\uff1a\u7528\u4e8e\u5355\u884c\u6ce8\u91ca\uff1b<\/p>\n

                        \/*\u00a0\u9700\u8981\u6ce8\u91ca\u7684\u90e8\u5206 *\/\uff1a\u7528\u6237\u591a\u884c\u6ce8\u91ca\uff1b<\/p>\n

                        \u6ce8\u610f\uff1a\u4e0d\u7ba1\u5355\u884c\u548c\u591a\u884c\u7684\u6ce8\u91ca\uff0c\u5982\u679c\u628a\u5206\u9694\u7b26\u201c\/\/\u201d\u5199\u5230\u6ce8\u91ca\u4e2d\uff0c\u5219\u5206\u9694\u7b26\u5931\u6548\uff0c\u9700\u8981\u5728\u6ce8\u91ca\u5916\u91cd\u65b0\u5199\u5206\u9694\u7b26\u3002\u53e6\u5916\uff0c\u201c--\u201d\u548c\u201c#\u201d\u7684\u5355\u884c\u6ce8\u91ca\u98ce\u683c\u548c C \u6216 JAVA \u7b49\u8bed\u8a00\u7684\u201c\/\/\u201d\u6ce8\u91ca\u4e00\u6837\uff0c\u4e0d\u8fc7\u6700\u597d\u5728\u6807\u8bb0\u548c\u88ab\u6ce8\u91ca\u7684\u5185\u5bb9\u95f4\u52a0\u4e2a\u7a7a\u683c\u3002<\/p>\n

                        MySQL \u5b58\u50a8\u8fc7\u7a0b\u4e2d\u53d8\u91cf\u7684\u58f0\u660e\u548c\u8d4b\u503c\uff1a<\/strong><\/p>\n

                        \u7528\u5173\u952e\u5b57 declare \u58f0\u660e\u53d8\u91cf\uff0c\u7528 set \u5173\u952e\u5b57\u7ed9\u53d8\u91cf\u8d4b\u503c\u3002<\/p>\n

                        MySQL \u5b58\u50a8\u8fc7\u7a0b\u7684\u63a7\u5236\u8bed\u53e5\uff1a<\/strong><\/p>\n

                        1. \u4f5c\u7528\u57df\u95ee\u9898\u3002<\/strong><\/p>\n

                        \n
                        \n
                        Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
                          \n
                        1. mysql>\u00a0<\/span>create<\/span>\u00a0<\/span>procedure<\/span>\u00a0p11()\u00a0\u00a0<\/span><\/span><\/li>\n
                        2. \u00a0\u00a0\u00a0\u00a0->\u00a0begin<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                        3. \u00a0\u00a0\u00a0\u00a0->\u00a0declare<\/span>\u00a0xx\u00a0<\/span>char<\/span>(5)\u00a0<\/span>default<\/span>\u00a0'<\/span>outer<\/span>';\u00a0\u00a0<\/span><\/span><\/li>\n
                        4. \u00a0\u00a0\u00a0\u00a0->\u00a0begin<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                        5. \u00a0\u00a0\u00a0\u00a0->\u00a0declare<\/span>\u00a0xx\u00a0<\/span>char<\/span>(5)\u00a0<\/span>default<\/span>\u00a0'<\/span>inner<\/span>';\u00a0\u00a0<\/span><\/span><\/li>\n
                        6. \u00a0\u00a0\u00a0\u00a0->\u00a0select<\/span>\u00a0xx;\u00a0\u00a0<\/span><\/span><\/li>\n
                        7. \u00a0\u00a0\u00a0\u00a0->\u00a0end<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
                        8. \u00a0\u00a0\u00a0\u00a0->\u00a0select<\/span>\u00a0xx;\u00a0\u00a0<\/span><\/span><\/li>\n
                        9. \u00a0\u00a0\u00a0\u00a0->\u00a0end<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
                        10. \u00a0\u00a0\u00a0\u00a0->\u00a0\/\/\u00a0\u00a0<\/span><\/li>\n
                        11. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                        12. \u00a0\u00a0<\/span><\/li>\n
                        13. mysql>\u00a0call\u00a0p11()\u00a0\/\/\u00a0\u00a0<\/span><\/li>\n
                        14. +-------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                        15. |\u00a0xx\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                        16. +-------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                        17. |\u00a0inner<\/span>\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                        18. +-------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                        19. 1\u00a0row\u00a0in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                        20. \u00a0\u00a0<\/span><\/li>\n
                        21. +-------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                        22. |\u00a0xx\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                        23. +-------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                        24. |\u00a0outer<\/span>\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                        25. +-------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                        26. 1\u00a0row\u00a0in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                        27. \u00a0\u00a0<\/span><\/li>\n
                        28. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

                          2. \u6761\u4ef6\u8bed\u53e5 IF...THEN... \u548c IF...THEN... \u00a0ELSE...<\/strong><\/p>\n

                          \n
                          \n
                          Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
                            \n
                          1. mysql>\u00a0<\/span>select<\/span>\u00a0*\u00a0<\/span>from<\/span>\u00a0t\u00a0\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                          2. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                          3. |\u00a0s1\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                          4. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                          5. |\u00a0\u00a0\u00a0\u00a05\u00a0|\u00a0\u00a0<\/span><\/li>\n
                          6. |\u00a0\u00a0\u00a0\u00a05\u00a0|\u00a0\u00a0<\/span><\/li>\n
                          7. |\u00a0\u00a0\u00a0\u00a05\u00a0|\u00a0\u00a0<\/span><\/li>\n
                          8. |\u00a0\u00a0\u00a0\u00a05\u00a0|\u00a0\u00a0<\/span><\/li>\n
                          9. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                          10. 4\u00a0rows<\/span>\u00a0<\/span>in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                          11. \u00a0\u00a0<\/span><\/li>\n
                          12. mysql>\u00a0create<\/span>\u00a0<\/span>procedure<\/span>\u00a0p12(<\/span>IN<\/span>\u00a0pp\u00a0<\/span>int<\/span>)\u00a0\u00a0<\/span><\/span><\/li>\n
                          13. \u00a0\u00a0\u00a0\u00a0->\u00a0begin<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                          14. \u00a0\u00a0\u00a0\u00a0->\u00a0declare<\/span>\u00a0vv\u00a0<\/span>int<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
                          15. \u00a0\u00a0\u00a0\u00a0->\u00a0set<\/span>\u00a0vv=pp+1;\u00a0\u00a0<\/span><\/span><\/li>\n
                          16. \u00a0\u00a0\u00a0\u00a0->\u00a0if\u00a0vv=0\u00a0then<\/span>\u00a0\u00a0\u00a0<\/span><\/span><\/li>\n
                          17. \u00a0\u00a0\u00a0\u00a0->\u00a0insert<\/span>\u00a0<\/span>into<\/span>\u00a0t\u00a0<\/span>values<\/span>\u00a0(17);\u00a0\u00a0<\/span><\/span><\/li>\n
                          18. \u00a0\u00a0\u00a0\u00a0->\u00a0end<\/span>\u00a0if;\u00a0\u00a0<\/span><\/span><\/li>\n
                          19. \u00a0\u00a0\u00a0\u00a0->\u00a0if\u00a0pp=0\u00a0then<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                          20. \u00a0\u00a0\u00a0\u00a0->\u00a0update<\/span>\u00a0t\u00a0<\/span>set<\/span>\u00a0s1=s1+1;\u00a0\u00a0<\/span><\/span><\/li>\n
                          21. \u00a0\u00a0\u00a0\u00a0->\u00a0else<\/span>\u00a0\u00a0\u00a0<\/span><\/span><\/li>\n
                          22. \u00a0\u00a0\u00a0\u00a0->\u00a0update<\/span>\u00a0t\u00a0<\/span>set<\/span>\u00a0s1=s1+2;\u00a0\u00a0<\/span><\/span><\/li>\n
                          23. \u00a0\u00a0\u00a0\u00a0->\u00a0end<\/span>\u00a0if;\u00a0\u00a0<\/span><\/span><\/li>\n
                          24. \u00a0\u00a0\u00a0\u00a0->\u00a0end<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
                          25. \u00a0\u00a0\u00a0\u00a0->\u00a0\/\/\u00a0\u00a0<\/span><\/li>\n
                          26. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                          27. \u00a0\u00a0<\/span><\/li>\n
                          28. mysql>\u00a0select<\/span>\u00a0*\u00a0<\/span>from<\/span>\u00a0t\u00a0\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                          29. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                          30. |\u00a0s1\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                          31. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                          32. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                          33. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                          34. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                          35. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                          36. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                          37. 4\u00a0rows<\/span>\u00a0<\/span>in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

                            3. case\u8bed\u53e5<\/strong><\/p>\n

                            \n
                            \n
                            Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
                              \n
                            1. mysql>\u00a0<\/span>select<\/span>\u00a0*\u00a0<\/span>from<\/span>\u00a0t;\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                            2. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                            3. |\u00a0s1\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                            4. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                            5. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                            6. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                            7. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                            8. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                            9. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                            10. 4\u00a0rows<\/span>\u00a0<\/span>in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                            11. \u00a0\u00a0<\/span><\/li>\n
                            12. mysql>\u00a0create<\/span>\u00a0<\/span>procedure<\/span>\u00a0p13(<\/span>IN<\/span>\u00a0pp\u00a0<\/span>int<\/span>)\u00a0\u00a0<\/span><\/span><\/li>\n
                            13. \u00a0\u00a0\u00a0\u00a0->\u00a0begin<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                            14. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0declare<\/span>\u00a0vv\u00a0<\/span>int<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
                            15. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0set<\/span>\u00a0vv\u00a0=\u00a0pp\u00a0+\u00a01;\u00a0\u00a0<\/span><\/span><\/li>\n
                            16. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0case<\/span>\u00a0vv\u00a0\u00a0<\/span><\/span><\/li>\n
                            17. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0\u00a0\u00a0when<\/span>\u00a00\u00a0<\/span>then<\/span>\u00a0<\/span>insert<\/span>\u00a0<\/span>into<\/span>\u00a0t\u00a0<\/span>values<\/span>(17);\u00a0\u00a0<\/span><\/span><\/li>\n
                            18. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0\u00a0\u00a0when<\/span>\u00a01\u00a0<\/span>then<\/span>\u00a0<\/span>insert<\/span>\u00a0<\/span>into<\/span>\u00a0t\u00a0<\/span>values<\/span>(18);\u00a0\u00a0<\/span><\/span><\/li>\n
                            19. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0\u00a0\u00a0else<\/span>\u00a0<\/span>insert<\/span>\u00a0<\/span>into<\/span>\u00a0t\u00a0<\/span>values<\/span>\u00a0(19);\u00a0\u00a0<\/span><\/span><\/li>\n
                            20. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0end<\/span>\u00a0<\/span>case<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
                            21. \u00a0\u00a0\u00a0\u00a0->\u00a0end<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
                            22. \u00a0\u00a0\u00a0\u00a0->\u00a0\/\/\u00a0\u00a0<\/span><\/li>\n
                            23. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                            24. \u00a0\u00a0<\/span><\/li>\n
                            25. mysql>\u00a0call\u00a0p13(0)\/\/\u00a0\u00a0<\/span><\/li>\n
                            26. Query\u00a0OK,\u00a01\u00a0row\u00a0affected\u00a0(0.01\u00a0sec)\u00a0\u00a0<\/span><\/li>\n
                            27. \u00a0\u00a0<\/span><\/li>\n
                            28. mysql>\u00a0select<\/span>\u00a0*\u00a0<\/span>from<\/span>\u00a0t\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                            29. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                            30. |\u00a0s1\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                            31. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                            32. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                            33. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                            34. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                            35. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                            36. |\u00a0\u00a0\u00a018\u00a0|\u00a0\u00a0<\/span><\/li>\n
                            37. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                            38. 5\u00a0rows<\/span>\u00a0<\/span>in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

                              4. \u5faa\u73af\u8bed\u53e5 while...end while\u3001loop...end loop\u3001repeat...end repeat \u4ee5\u53ca\u5f88\u96be\u9a7e\u9a6d\u7684 goto\u3002<\/strong><\/p>\n

                              \n
                              \n
                              Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
                                \n
                              1. mysql>\u00a0<\/span>select<\/span>\u00a0*\u00a0<\/span>from<\/span>\u00a0t\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                              2. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                              3. |\u00a0s1\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              4. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                              5. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              6. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              7. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              8. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              9. |\u00a0\u00a0\u00a018\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              10. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                              11. 5\u00a0rows<\/span>\u00a0<\/span>in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                              12. \u00a0\u00a0<\/span><\/li>\n
                              13. mysql>\u00a0create<\/span>\u00a0<\/span>procedure<\/span>\u00a0p14()\u00a0\u00a0<\/span><\/span><\/li>\n
                              14. \u00a0\u00a0\u00a0\u00a0->\u00a0begin<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                              15. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0declare<\/span>\u00a0v\u00a0<\/span>int<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
                              16. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0set<\/span>\u00a0v\u00a0=\u00a00;\u00a0\u00a0<\/span><\/span><\/li>\n
                              17. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0while\u00a0v\u00a0<\u00a05\u00a0do\u00a0\u00a0<\/span><\/li>\n
                              18. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0\u00a0\u00a0insert<\/span>\u00a0<\/span>into<\/span>\u00a0t\u00a0<\/span>values<\/span>(v);\u00a0\u00a0<\/span><\/span><\/li>\n
                              19. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0\u00a0\u00a0set<\/span>\u00a0v\u00a0=\u00a0v\u00a0+\u00a01;\u00a0\u00a0<\/span><\/span><\/li>\n
                              20. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0end<\/span>\u00a0while;\u00a0\u00a0<\/span><\/span><\/li>\n
                              21. \u00a0\u00a0\u00a0\u00a0->\u00a0end<\/span>;\u00a0\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                              22. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n
                              23. \u00a0\u00a0<\/span><\/li>\n
                              24. mysql>\u00a0call\u00a0p14()\u00a0\/\/\u00a0\u00a0<\/span><\/li>\n
                              25. Query\u00a0OK,\u00a01\u00a0row\u00a0affected\u00a0(0.04\u00a0sec)\u00a0\u00a0<\/span><\/li>\n
                              26. \u00a0\u00a0<\/span><\/li>\n
                              27. mysql>\u00a0select<\/span>\u00a0*\u00a0<\/span>from<\/span>\u00a0t;\u00a0\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                              28. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                              29. |\u00a0s1\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              30. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                              31. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              32. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              33. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              34. |\u00a0\u00a0\u00a0\u00a06\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              35. |\u00a0\u00a0\u00a018\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              36. |\u00a0\u00a0\u00a0\u00a00\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              37. |\u00a0\u00a0\u00a0\u00a01\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              38. |\u00a0\u00a0\u00a0\u00a02\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              39. |\u00a0\u00a0\u00a0\u00a03\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              40. |\u00a0\u00a0\u00a0\u00a04\u00a0|\u00a0\u00a0<\/span><\/li>\n
                              41. +------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                              42. 10\u00a0rows<\/span>\u00a0<\/span>in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n
                                \n
                                \n
                                Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
                                  \n
                                1. mysql>\u00a0<\/span>create<\/span>\u00a0<\/span>procedure<\/span>\u00a0p15()\u00a0\u00a0<\/span><\/span><\/li>\n
                                2. \u00a0\u00a0\u00a0\u00a0->\u00a0begin<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                3. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0declare<\/span>\u00a0v\u00a0<\/span>int<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
                                4. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0set<\/span>\u00a0v=0;\u00a0\u00a0<\/span><\/span><\/li>\n
                                5. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0repeat\u00a0\u00a0<\/span><\/li>\n
                                6. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0\u00a0\u00a0insert<\/span>\u00a0<\/span>into<\/span>\u00a0t\u00a0<\/span>values<\/span>(v);\u00a0\u00a0<\/span><\/span><\/li>\n
                                7. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0\u00a0\u00a0set<\/span>\u00a0v=v+1;\u00a0\u00a0<\/span><\/span><\/li>\n
                                8. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0\u00a0\u00a0until\u00a0v>=5\u00a0\u00a0<\/span><\/li>\n
                                9. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0end<\/span>\u00a0repeat;\u00a0\u00a0<\/span><\/span><\/li>\n
                                10. \u00a0\u00a0\u00a0\u00a0->\u00a0end<\/span>;\u00a0\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                                11. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n
                                  \n
                                  \n
                                  Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
                                    \n
                                  1. mysql>\u00a0<\/span>create<\/span>\u00a0<\/span>procedure<\/span>\u00a0p16()\u00a0\u00a0<\/span><\/span><\/li>\n
                                  2. \u00a0\u00a0\u00a0\u00a0->\u00a0begin<\/span>\u00a0\u00a0\u00a0<\/span><\/span><\/li>\n
                                  3. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0declare<\/span>\u00a0v\u00a0<\/span>int<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
                                  4. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0set<\/span>\u00a0v=0;\u00a0\u00a0<\/span><\/span><\/li>\n
                                  5. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0loop_label:LOOP\u00a0\u00a0<\/span><\/li>\n
                                  6. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0\u00a0\u00a0insert<\/span>\u00a0<\/span>into<\/span>\u00a0t\u00a0<\/span>values<\/span>(v);\u00a0\u00a0<\/span><\/span><\/li>\n
                                  7. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0\u00a0\u00a0set<\/span>\u00a0v=v+1;\u00a0\u00a0<\/span><\/span><\/li>\n
                                  8. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0\u00a0\u00a0if\u00a0v>=5\u00a0then<\/span>\u00a0\u00a0\u00a0<\/span><\/span><\/li>\n
                                  9. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0leave\u00a0loop_label;\u00a0\u00a0<\/span><\/li>\n
                                  10. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0\u00a0\u00a0end<\/span>\u00a0if;\u00a0\u00a0<\/span><\/span><\/li>\n
                                  11. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0end<\/span>\u00a0LOOP;\u00a0\u00a0<\/span><\/span><\/li>\n
                                  12. \u00a0\u00a0\u00a0\u00a0->\u00a0end<\/span>;\u00a0\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                                  13. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

                                    \u4ee5\u4e0a\u5faa\u73af\u7684\u4ee3\u7801\u90fd\u4f1a\u5411\u8868 t \u4e2d\u63d2\u5165 5 \u884c\u6570\u636e\uff0c\u503c\u5206\u522b\u4e3a 0\u30011\u30012\u30013\u30014\u3002<\/p>\n

                                    \u4e0b\u9762\u662f\u4e2a\u8fed\u4ee3\u8bed\u53e5 ITERATE\uff0c\u76f8\u5f53\u4e8e\u5176\u5b83\u9ad8\u7ea7\u8bed\u8a00\u4e2d\u7684 continue \u5173\u952e\u5b57\uff0c\u8df3\u8fc7\u5f53\u6b21\u5faa\u73af\uff0c\u63a5\u7740\u8fdb\u884c\u4e0b\u4e00\u6b21\u3002<\/p>\n

                                    \n
                                    \n
                                    Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
                                      \n
                                    1. mysql>\u00a0<\/span>create<\/span>\u00a0<\/span>procedure<\/span>\u00a0p20()\u00a0\u00a0<\/span><\/span><\/li>\n
                                    2. \u00a0\u00a0\u00a0\u00a0->\u00a0begin<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                    3. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0declare<\/span>\u00a0v\u00a0<\/span>int<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
                                    4. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0set<\/span>\u00a0v=0;\u00a0\u00a0<\/span><\/span><\/li>\n
                                    5. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0loop_label:LOOP\u00a0\u00a0<\/span><\/li>\n
                                    6. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0if\u00a0v=3\u00a0then<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                    7. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0\u00a0\u00a0set<\/span>\u00a0v=v+1;\u00a0\u00a0<\/span><\/span><\/li>\n
                                    8. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0\u00a0\u00a0iterate\u00a0loop_label;\u00a0\u00a0<\/span><\/li>\n
                                    9. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0end<\/span>\u00a0if;\u00a0\u00a0<\/span><\/span><\/li>\n
                                    10. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0insert<\/span>\u00a0<\/span>into<\/span>\u00a0t\u00a0<\/span>values<\/span>(v);\u00a0\u00a0<\/span><\/span><\/li>\n
                                    11. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0set<\/span>\u00a0v=v+1;\u00a0\u00a0<\/span><\/span><\/li>\n
                                    12. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0if\u00a0v>=5\u00a0then<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                    13. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0\u00a0\u00a0leave\u00a0loop_label;\u00a0\u00a0<\/span><\/li>\n
                                    14. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0end<\/span>\u00a0if;\u00a0\u00a0<\/span><\/span><\/li>\n
                                    15. \u00a0\u00a0\u00a0\u00a0->\u00a0\u00a0\u00a0end<\/span>\u00a0LOOP;\u00a0\u00a0<\/span><\/span><\/li>\n
                                    16. \u00a0\u00a0\u00a0\u00a0->\u00a0end<\/span>;\u00a0\/\/\u00a0\u00a0<\/span><\/span><\/li>\n
                                    17. Query\u00a0OK,\u00a00\u00a0rows<\/span>\u00a0affected\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

                                      \u8fd9\u4e2a\u5b58\u50a8\u8fc7\u7a0b\u6267\u884c\u540e\u7684\u7ed3\u679c\u662f\uff0c\u5411\u8868 t \u4e2d\u63d2\u5165 4 \u6761\u6570\u636e\uff0c\u5206\u522b\u4e3a 0\u30011\u30012\u30014\u3002<\/p>\n

                                      GOTO \u5faa\u73af\u5e73\u65f6\u5f88\u5c11\u7528\uff0c\u539f\u56e0\u662f\u63a7\u5236\u4e0d\u597d\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4ee3\u7801\u6d41\u7a0b\u7279\u522b\u4e71\uff0c\u5f88\u96be\u7ba1\u7406\uff0c\u8fd9\u91cc\u4e5f\u5c31\u4e0d\u591a\u505a\u4ecb\u7ecd\u4e86\u3002\u5230\u8fd9\u91cc\uff0c\u5b58\u50a8\u8fc7\u7a0b\u57fa\u7840\u5927\u6982\u8bb2\u7684\u5dee\u4e0d\u591a\u4e86\uff0c\u8ba9\u6211\u4eec\u628a\u5206\u9694\u7b26\u5148\u8fd8\u539f\u6210\u9ed8\u8ba4\u7684\u5206\u53f7\u3002<\/strong>
                                      \nmysql> delimiter ;<\/code><\/p>\n

                                      \u8bb2\u4e86\u8fd9\u4e48\u591a\u5b58\u50a8\u8fc7\u7a0b\u7684\u4e1c\u897f\uff0c\u73b0\u5728\u5df2\u7ecf\u5efa\u4e86\u5f88\u591a\u4e2a\u5b58\u50a8\u8fc7\u7a0b\u4e86\u3002\u5728 MySQL \u4e2d\u5982\u4f55\u7ba1\u7406\u8fd9\u4e9b\u5b58\u50a8\u8fc7\u7a0b\u5462\uff1f\u63a5\u4e0b\u6765\u5c31\u8bb2\u8bb2\u8fd9\u65b9\u9762\u7684\u4e1c\u897f\u5427\u3002<\/p>\n

                                      1. \u67e5\u770b\u6570\u636e\u5e93\u4e0b\u90fd\u6709\u4ec0\u4e48\u5b58\u50a8\u8fc7\u7a0b\u3002<\/strong><\/p>\n

                                      \u8bed\u53e5\u4e00\uff1a<\/strong><\/p>\n

                                      \n
                                      \n
                                      Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
                                        \n
                                      1. mysql>\u00a0<\/span>select<\/span>\u00a0<\/span>name<\/span>\u00a0<\/span>from<\/span>\u00a0mysql.proc\u00a0<\/span>where<\/span>\u00a0db='test';\u00a0\u00a0<\/span><\/span><\/li>\n
                                      2. +----------------------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                      3. |\u00a0name<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                      4. +----------------------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                      5. |\u00a0demo_inout_parameter\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      6. |\u00a0demo_in_parameter\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      7. |\u00a0demo_out_parameter\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      8. |\u00a0p1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      9. |\u00a0p10\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      10. |\u00a0p11\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      11. |\u00a0p12\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      12. |\u00a0p13\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      13. |\u00a0p14\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      14. |\u00a0p15\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      15. |\u00a0p16\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      16. |\u00a0p2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      17. |\u00a0p20\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      18. |\u00a0p7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      19. |\u00a0p8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      20. |\u00a0p_in\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      21. |\u00a0p_out\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                      22. +----------------------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                      23. 17\u00a0rows<\/span>\u00a0<\/span>in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

                                        \u8bed\u53e5\u4e8c\uff1a<\/strong><\/p>\n

                                        \n
                                        \n
                                        Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
                                          \n
                                        1. mysql>\u00a0<\/span>select<\/span>\u00a0routine_name\u00a0<\/span>from<\/span>\u00a0information_schema.routines\u00a0<\/span>where<\/span>\u00a0routine_schema='test';\u00a0\u00a0<\/span><\/span><\/li>\n
                                        2. +----------------------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                        3. |\u00a0routine_name\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        4. +----------------------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                        5. |\u00a0demo_inout_parameter\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        6. |\u00a0demo_in_parameter\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        7. |\u00a0demo_out_parameter\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        8. |\u00a0p1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        9. |\u00a0p10\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        10. |\u00a0p11\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        11. |\u00a0p12\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        12. |\u00a0p13\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        13. |\u00a0p14\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        14. |\u00a0p15\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        15. |\u00a0p16\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        16. |\u00a0p2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        17. |\u00a0p20\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        18. |\u00a0p7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        19. |\u00a0p8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        20. |\u00a0p_in\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        21. |\u00a0p_out\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0<\/span><\/li>\n
                                        22. +----------------------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                        23. 17\u00a0rows<\/span>\u00a0<\/span>in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

                                          \u8bed\u53e5\u4e09\uff1a<\/strong><\/p>\n

                                          \n
                                          \n
                                          Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
                                            \n
                                          1. mysql>\u00a0show\u00a0<\/span>procedure<\/span>\u00a0status\u00a0<\/span>where<\/span>\u00a0db='test';\u00a0\u00a0<\/span><\/span><\/li>\n
                                          2. +------+----------------------+-----------+----------------+---------------------+---------------------+---------------+-------------+----------------------+----------------------+--------------------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                          3. |\u00a0Db\u00a0\u00a0\u00a0|\u00a0Name<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0Type\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0Definer\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0Modified\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0Created\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0Security_type\u00a0|\u00a0Comment\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0character_set_client\u00a0|\u00a0collation_connection\u00a0|\u00a0<\/span>Database<\/span>\u00a0Collation\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          4. +------+----------------------+-----------+----------------+---------------------+---------------------+---------------+-------------+----------------------+----------------------+--------------------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                          5. |\u00a0test\u00a0|\u00a0demo_inout_parameter\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-02-01\u00a014:16:36\u00a0|\u00a02015-02-01\u00a014:16:36\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          6. |\u00a0test\u00a0|\u00a0demo_in_parameter\u00a0\u00a0\u00a0\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-02-01\u00a013:56:44\u00a0|\u00a02015-02-01\u00a013:56:44\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          7. |\u00a0test\u00a0|\u00a0demo_out_parameter\u00a0\u00a0\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-02-01\u00a014:03:09\u00a0|\u00a02015-02-01\u00a014:03:09\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          8. |\u00a0test\u00a0|\u00a0p1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-01-31\u00a018:40:37\u00a0|\u00a02015-01-31\u00a018:40:37\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          9. |\u00a0test\u00a0|\u00a0p10\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-02-01\u00a015:06:28\u00a0|\u00a02015-02-01\u00a015:06:28\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          10. |\u00a0test\u00a0|\u00a0p11\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-02-01\u00a015:09:19\u00a0|\u00a02015-02-01\u00a015:09:19\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          11. |\u00a0test\u00a0|\u00a0p12\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-02-01\u00a015:18:15\u00a0|\u00a02015-02-01\u00a015:18:15\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          12. |\u00a0test\u00a0|\u00a0p13\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-02-01\u00a016:07:37\u00a0|\u00a02015-02-01\u00a016:07:37\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          13. |\u00a0test\u00a0|\u00a0p14\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-02-01\u00a016:16:24\u00a0|\u00a02015-02-01\u00a016:16:24\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          14. |\u00a0test\u00a0|\u00a0p15\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-02-01\u00a017:13:16\u00a0|\u00a02015-02-01\u00a017:13:16\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          15. |\u00a0test\u00a0|\u00a0p16\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-02-01\u00a017:17:10\u00a0|\u00a02015-02-01\u00a017:17:10\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          16. |\u00a0test\u00a0|\u00a0p2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-01-31\u00a019:12:49\u00a0|\u00a02015-01-31\u00a019:12:49\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0A\u00a0<\/span>Procedure<\/span>\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          17. |\u00a0test\u00a0|\u00a0p20\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-02-01\u00a017:28:21\u00a0|\u00a02015-02-01\u00a017:28:21\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          18. |\u00a0test\u00a0|\u00a0p7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-02-01\u00a014:58:04\u00a0|\u00a02015-02-01\u00a014:58:04\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          19. |\u00a0test\u00a0|\u00a0p8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-02-01\u00a015:04:12\u00a0|\u00a02015-02-01\u00a015:04:12\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          20. |\u00a0test\u00a0|\u00a0p_in\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-01-31\u00a019:47:34\u00a0|\u00a02015-01-31\u00a019:47:34\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          21. |\u00a0test\u00a0|\u00a0p_out\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0PROCEDURE<\/span>\u00a0|\u00a0root@localhost\u00a0|\u00a02015-01-31\u00a019:50:40\u00a0|\u00a02015-01-31\u00a019:50:40\u00a0|\u00a0DEFINER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0utf8_general_ci\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0|\u00a0latin1_swedish_ci\u00a0\u00a0|\u00a0\u00a0<\/span><\/span><\/li>\n
                                          22. +------+----------------------+-----------+----------------+---------------------+---------------------+---------------+-------------+----------------------+----------------------+--------------------+<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                          23. 17\u00a0rows<\/span>\u00a0<\/span>in<\/span>\u00a0<\/span>set<\/span>\u00a0(0.00\u00a0sec)\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

                                            \u5982\u679c\u60f3\u67e5\u770b\u67d0\u4e00\u4e2a\u5b58\u50a8\u8fc7\u7a0b\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u53ef\u4ee5\u7528\u8bed\u53e5\u00a0show create procedure \u6570\u636e\u5e93\u540d.\u5b58\u50a8\u8fc7\u7a0b\u540d;<\/span><\/strong>
                                            \nmysql> show create procedure test.p2;<\/code><\/p>\n

                                            \u5b58\u50a8\u8fc7\u7a0b\u7684\u4fee\u6539\u8bed\u53e5 alert procedure<\/span>\u3002\u4e0d\u8fc7\u4fee\u6539\u597d\u50cf\u53ea\u80fd\u4fee\u6539\u6267\u884c\u6743\u9650\u7b49\uff0c\u5982\u679c\u9700\u8981\u4fee\u6539\u4e3b\u9898\uff0c\u5f88\u591a\u4eba\u5efa\u8bae\u5220\u4e86\u91cd\u5efa\u3002<\/strong><\/p>\n

                                            \u5220\u9664\u5b58\u50a8\u8fc7\u7a0b\u7684\u8bed\u53e5\u662f delete procedure \u5b58\u50a8\u8fc7\u7a0b\u540d;<\/span><\/strong><\/p>\n

                                            \u6700\u540e\uff0c\u6709\u7f51\u53cb\u6574\u7406\u4e86\u4e9b MySQL \u5b58\u50a8\u8fc7\u7a0b\u4e2d\u7684\u57fa\u672c\u51fd\u6570\uff0c\u987a\u4fbf\u5206\u4eab\u7ed9\u5927\u5bb6\u3002<\/p>\n

                                            \n
                                            \n
                                            Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
                                              \n
                                            1. \/**<\/span>\u00a0<\/span><\/li>\n
                                            2. \u00a0*\u00a0\u5b57\u7b26\u4e32\u7c7b<\/span>\u00a0<\/span><\/li>\n
                                            3. \u00a0*\/<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            4. CHARSET(str)\u00a0\/\/\u8fd4\u56de\u5b57\u4e32\u5b57\u7b26\u96c6<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            5. CONCAT\u00a0(string2\u00a0[,...\u00a0])\u00a0\/\/\u8fde\u63a5\u5b57\u4e32<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            6. INSTR\u00a0(string\u00a0,substring\u00a0)\u00a0\/\/\u8fd4\u56desubstring\u9996\u6b21\u5728string\u4e2d\u51fa\u73b0\u7684\u4f4d\u7f6e,\u4e0d\u5b58\u5728\u8fd4\u56de0<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            7. LCASE\u00a0(string2\u00a0)\u00a0\/\/\u8f6c\u6362\u6210\u5c0f\u5199<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            8. LEFT\u00a0(string2\u00a0,length\u00a0)\u00a0\/\/\u4ecestring2\u4e2d\u7684\u5de6\u8fb9\u8d77\u53d6length\u4e2a\u5b57\u7b26<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            9. LENGTH\u00a0(string\u00a0)\u00a0\/\/string\u957f\u5ea6<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            10. LOAD_FILE\u00a0(file_name\u00a0)\u00a0\/\/\u4ece\u6587\u4ef6\u8bfb\u53d6\u5185\u5bb9<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            11. LOCATE\u00a0(substring\u00a0,\u00a0string\u00a0[,start_position\u00a0]\u00a0)\u00a0\u540cINSTR,\u4f46\u53ef\u6307\u5b9a\u5f00\u59cb\u4f4d\u7f6e\u00a0\u00a0<\/span><\/li>\n
                                            12. LPAD\u00a0(string2\u00a0,length\u00a0,pad\u00a0)\u00a0\/\/\u91cd\u590d\u7528pad\u52a0\u5728string\u5f00\u5934,\u76f4\u5230\u5b57\u4e32\u957f\u5ea6\u4e3alength<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            13. LTRIM\u00a0(string2\u00a0)\u00a0\/\/\u53bb\u9664\u524d\u7aef\u7a7a\u683c<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            14. REPEAT\u00a0(string2\u00a0,count\u00a0)\u00a0\/\/\u91cd\u590dcount\u6b21<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            15. REPLACE\u00a0(str\u00a0,search_str\u00a0,replace_str\u00a0)\u00a0\/\/\u5728str\u4e2d\u7528replace_str\u66ff\u6362search_str<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            16. RPAD\u00a0(string2\u00a0,length\u00a0,pad)\u00a0\/\/\u5728str\u540e\u7528pad\u8865\u5145,\u76f4\u5230\u957f\u5ea6\u4e3alength<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            17. RTRIM\u00a0(string2\u00a0)\u00a0\/\/\u53bb\u9664\u540e\u7aef\u7a7a\u683c<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            18. STRCMP\u00a0(string1\u00a0,string2\u00a0)\u00a0\/\/\u9010\u5b57\u7b26\u6bd4\u8f83\u4e24\u5b57\u4e32\u5927\u5c0f,<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            19. SUBSTRING\u00a0(str\u00a0,\u00a0position\u00a0[,length\u00a0])\u00a0\/\/\u4ecestr\u7684position\u5f00\u59cb,\u53d6length\u4e2a\u5b57\u7b26,<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            20. \/\/\u00a0\u6ce8\uff1amysql\u4e2d\u5904\u7406\u5b57\u7b26\u4e32\u65f6\uff0c\u9ed8\u8ba4\u7b2c\u4e00\u4e2a\u5b57\u7b26\u4e0b\u6807\u4e3a1\uff0c\u5373\u53c2\u6570position\u5fc5\u987b\u5927\u4e8e\u7b49\u4e8e1<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            21. TRIM([[BOTH|LEADING|TRAILING]\u00a0[padding]\u00a0FROM]string2)\u00a0\/\/\u53bb\u9664\u6307\u5b9a\u4f4d\u7f6e\u7684\u6307\u5b9a\u5b57\u7b26<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            22. UCASE\u00a0(string2\u00a0)\u00a0\/\/\u8f6c\u6362\u6210\u5927\u5199<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            23. RIGHT(string2,length)\u00a0\/\/\u53d6string2\u6700\u540elength\u4e2a\u5b57\u7b26<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            24. SPACE(count)\u00a0\/\/\u751f\u6210count\u4e2a\u7a7a\u683c<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            25. \u00a0\u00a0<\/span><\/li>\n
                                            26. \/**<\/span>\u00a0<\/span><\/li>\n
                                            27. \u00a0*\u00a0\u6570\u5b66\u7c7b<\/span>\u00a0<\/span><\/li>\n
                                            28. \u00a0*\/<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            29. ABS\u00a0(number2\u00a0)\u00a0\/\/\u7edd\u5bf9\u503c<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            30. BIN\u00a0(decimal_number\u00a0)\u00a0\/\/\u5341\u8fdb\u5236\u8f6c\u4e8c\u8fdb\u5236<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            31. CEILING\u00a0(number2\u00a0)\u00a0\/\/\u5411\u4e0a\u53d6\u6574<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            32. CONV(number2,from_base,to_base)\u00a0\/\/\u8fdb\u5236\u8f6c\u6362<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            33. FLOOR\u00a0(number2\u00a0)\u00a0\/\/\u5411\u4e0b\u53d6\u6574<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            34. FORMAT\u00a0(number,decimal_places\u00a0)\u00a0\/\/\u4fdd\u7559\u5c0f\u6570\u4f4d\u6570<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            35. HEX\u00a0(DecimalNumber\u00a0)\u00a0\/\/\u8f6c\u5341\u516d\u8fdb\u5236<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            36. \/\/\u00a0\u6ce8\uff1aHEX()\u4e2d\u53ef\u4f20\u5165\u5b57\u7b26\u4e32\uff0c\u5219\u8fd4\u56de\u5176ASC-11\u7801\uff0c\u5982HEX('DEF')\u8fd4\u56de4142143<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            37. \/\/\u00a0\u4e5f\u53ef\u4ee5\u4f20\u5165\u5341\u8fdb\u5236\u6574\u6570\uff0c\u8fd4\u56de\u5176\u5341\u516d\u8fdb\u5236\u7f16\u7801\uff0c\u5982HEX(25)\u8fd4\u56de19<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            38. LEAST\u00a0(number\u00a0,\u00a0number2\u00a0[,..])\u00a0\/\/\u6c42\u6700\u5c0f\u503c<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            39. MOD\u00a0(numerator\u00a0,denominator\u00a0)\u00a0\/\/\u6c42\u4f59<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            40. POWER\u00a0(number\u00a0,power\u00a0)\u00a0\/\/\u6c42\u6307\u6570<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            41. RAND([seed])\u00a0\/\/\u968f\u673a\u6570<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            42. ROUND\u00a0(number\u00a0[,decimals\u00a0])\u00a0\/\/\u56db\u820d\u4e94\u5165,decimals\u4e3a\u5c0f\u6570\u4f4d\u6570]<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            43. \u00a0\u00a0<\/span><\/li>\n
                                            44. \/**<\/span>\u00a0<\/span><\/li>\n
                                            45. \u00a0*\u00a0\u65e5\u671f\u65f6\u95f4\u7c7b<\/span>\u00a0<\/span><\/li>\n
                                            46. \u00a0*\/<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            47. ADDTIME\u00a0(date2\u00a0,time_interval\u00a0)\u00a0\/\/\u5c06time_interval\u52a0\u5230date2<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            48. CONVERT_TZ\u00a0(datetime2\u00a0,fromTZ\u00a0,toTZ\u00a0)\u00a0\/\/\u8f6c\u6362\u65f6\u533a<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            49. CURRENT_DATE\u00a0(\u00a0)\u00a0\/\/\u5f53\u524d\u65e5\u671f<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            50. CURRENT_TIME\u00a0(\u00a0)\u00a0\/\/\u5f53\u524d\u65f6\u95f4<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            51. CURRENT_TIMESTAMP\u00a0(\u00a0)\u00a0\/\/\u5f53\u524d\u65f6\u95f4\u6233<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            52. DATE\u00a0(datetime\u00a0)\u00a0\/\/\u8fd4\u56dedatetime\u7684\u65e5\u671f\u90e8\u5206<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            53. DATE_ADD\u00a0(date2\u00a0,\u00a0INTERVAL\u00a0d_value\u00a0d_type\u00a0)\u00a0\/\/\u5728date2\u4e2d\u52a0\u4e0a\u65e5\u671f\u6216\u65f6\u95f4<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            54. DATE_FORMAT\u00a0(datetime\u00a0,FormatCodes\u00a0)\u00a0\/\/\u4f7f\u7528formatcodes\u683c\u5f0f\u663e\u793adatetime<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            55. DATE_SUB\u00a0(date2\u00a0,\u00a0INTERVAL\u00a0d_value\u00a0d_type\u00a0)\u00a0\/\/\u5728date2\u4e0a\u51cf\u53bb\u4e00\u4e2a\u65f6\u95f4<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            56. DATEDIFF\u00a0(date1\u00a0,date2\u00a0)\u00a0\/\/\u4e24\u4e2a\u65e5\u671f\u5dee<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            57. DAY\u00a0(date\u00a0)\u00a0\/\/\u8fd4\u56de\u65e5\u671f\u7684\u5929<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            58. DAYNAME\u00a0(date\u00a0)\u00a0\/\/\u82f1\u6587\u661f\u671f<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            59. DAYOFWEEK\u00a0(date\u00a0)\u00a0\/\/\u661f\u671f(1-7)\u00a0,1\u4e3a\u661f\u671f\u5929<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            60. DAYOFYEAR\u00a0(date\u00a0)\u00a0\/\/\u4e00\u5e74\u4e2d\u7684\u7b2c\u51e0\u5929<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            61. EXTRACT\u00a0(interval_name\u00a0FROM\u00a0date\u00a0)\u00a0\/\/\u4ecedate\u4e2d\u63d0\u53d6\u65e5\u671f\u7684\u6307\u5b9a\u90e8\u5206<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            62. MAKEDATE\u00a0(year\u00a0,day\u00a0)\u00a0\/\/\u7ed9\u51fa\u5e74\u53ca\u5e74\u4e2d\u7684\u7b2c\u51e0\u5929,\u751f\u6210\u65e5\u671f\u4e32<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            63. MAKETIME\u00a0(hour\u00a0,minute\u00a0,second\u00a0)\u00a0\/\/\u751f\u6210\u65f6\u95f4\u4e32<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            64. MONTHNAME\u00a0(date\u00a0)\u00a0\/\/\u82f1\u6587\u6708\u4efd\u540d<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            65. NOW\u00a0(\u00a0)\u00a0\/\/\u5f53\u524d\u65f6\u95f4<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            66. SEC_TO_TIME\u00a0(seconds\u00a0)\u00a0\/\/\u79d2\u6570\u8f6c\u6210\u65f6\u95f4<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            67. STR_TO_DATE\u00a0(string\u00a0,format\u00a0)\u00a0\/\/\u5b57\u4e32\u8f6c\u6210\u65f6\u95f4,\u4ee5format\u683c\u5f0f\u663e\u793a<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            68. TIMEDIFF\u00a0(datetime1\u00a0,datetime2\u00a0)\u00a0\/\/\u4e24\u4e2a\u65f6\u95f4\u5dee<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            69. TIME_TO_SEC\u00a0(time\u00a0)\u00a0\/\/\u65f6\u95f4\u8f6c\u79d2\u6570]<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            70. WEEK\u00a0(date_time\u00a0[,start_of_week\u00a0])\u00a0\/\/\u7b2c\u51e0\u5468<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            71. YEAR\u00a0(datetime\u00a0)\u00a0\/\/\u5e74\u4efd<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            72. DAYOFMONTH(datetime)\u00a0\/\/\u6708\u7684\u7b2c\u51e0\u5929<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            73. HOUR(datetime)\u00a0\/\/\u5c0f\u65f6<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            74. LAST_DAY(date)\u00a0\/\/date\u7684\u6708\u7684\u6700\u540e\u65e5\u671f<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            75. MICROSECOND(datetime)\u00a0\/\/\u5fae\u79d2<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            76. MONTH(datetime)\u00a0\/\/\u6708<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            77. MINUTE(datetime)\u00a0\/\/\u5206\u8fd4\u56de\u7b26\u53f7,\u6b63\u8d1f\u62160<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n
                                            78. SQRT(number2)\u00a0\/\/\u5f00\u5e73\u65b9<\/span>\u00a0\u00a0<\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

                                              \u597d\u4e86\uff0c\u57fa\u7840\u90e8\u5206\u5230\u6b64\u7ed3\u675f\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

                                              \u5b58\u50a8\u8fc7\u7a0b\u662f\u4e00\u79cd\u5b58\u50a8\u5728\u6570\u636e\u5e93\u4e2d\u7684\u7a0b\u5e8f\uff0c\u5c31\u50cf\u662f\u6b63\u89c4\u8bed\u8a00\u4e2d\u7684\u5b50\u7a0b\u5e8f\u3002\u6211\u4eec\u5e38\u7528\u7684\u64cd\u4f5c\u6570\u636e\u5e93\u8bed\u8a00\u00a0SQL\u00a0\u8bed\u53e5\u5728\u6267\u884c\u7684\u65f6 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[800],"tags":[186,604,319,89],"class_list":["post-1349","post","type-post","status-publish","format-standard","hentry","category-mysql","tag-mysql","tag-sql","tag-319","tag-89"],"_links":{"self":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/1349","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1349"}],"version-history":[{"count":1,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/1349\/revisions"}],"predecessor-version":[{"id":5260,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/1349\/revisions\/5260"}],"wp:attachment":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1349"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1349"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}