{"id":5195,"date":"2022-08-25T13:40:56","date_gmt":"2022-08-25T05:40:56","guid":{"rendered":"http:\/\/www.menglanglang.cn\/?p=5195"},"modified":"2022-08-25T13:40:58","modified_gmt":"2022-08-25T05:40:58","slug":"mysql-%e6%95%b0%e6%8d%ae%e5%ba%93%e7%94%9f%e6%88%90%e8%bf%9e%e7%bb%ad%e6%97%a5%e6%9c%9f","status":"publish","type":"post","link":"http:\/\/www.menglanglang.cn\/?p=5195","title":{"rendered":"MySQL \u6570\u636e\u5e93\u751f\u6210\u8fde\u7eed\u65e5\u671f"},"content":{"rendered":"\n<p>\u200b\u8981\u60f3\u5728 MySQL \u4e2d\u76f4\u63a5\u7528 SQL \u751f\u6210\u8fde\u7eed\u65e5\u671f\uff0c\u6709\u4e00\u79cd\u751f\u6210\u65b9\u6cd5\u662f\u53ef\u4ee5\u501f\u52a9 mysql \u7528\u6237\u4e0b\u7684 help_topic \u8868\u5b9e\u73b0\uff0c\u811a\u672c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT\n\tdate_format( date_sub( '20220810', INTERVAL ( @i := @i - 1 ) DAY ), '%Y%m%d' ) AS days \nFROM\n\tmysql.help_topic\n\tJOIN ( SELECT @i := 1 ) c \nWHERE\n\thelp_topic_id &lt;= (\n\tTIMESTAMPDIFF( DAY, '20220810', '20220820' ))<\/code><\/pre>\n\n\n\n<p>\u901a\u8fc7\u5236\u5b9a\u5f00\u59cb\u65e5\u671f\u548c\u7ed3\u675f\u65e5\u671f\uff0c\u76f4\u63a5\u53ef\u4ee5\u751f\u6210\u8fde\u7eed\u65e5\u671f\u5217\u8868\uff0c\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"340\" width=\"275\" src=\"\/\/images.weserv.nl\/?url=https:\/\/img-blog.csdnimg.cn\/6a4457ebe6f645748d8d8fe121a5bb04.png\" alt=\"\"\/>\u200b<\/p>\n\n\n\n<p>\u6ce8\u610f\uff1a\u5982\u679c\u6267\u884c\u62a5\u9519\u5982\u4e0b\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>&gt; 1142 - SELECT command denied to user 'test'@'192.168.220.100' for table 'help_topic'<\/p><\/blockquote>\n\n\n\n<p>\u8bf4\u660e\u6267\u884c\u811a\u672c\u7684\u7528\u6237\u6ca1\u6709\u8868 mysql.help_topic \u7684\u6743\u9650\uff0c\u53ef\u4ee5\u901a\u8fc7\u6570\u636e\u5e93 root \u7528\u6237\u8fdb\u884c\u8d4b\u6743\uff0c\u8d4b\u6743\u811a\u672c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>grant select on mysql.help_topic to test;<\/p><\/blockquote>\n\n\n\n<p>\u5982\u679c\u60f3\u8981\u4e0d\u540c\u7684\u65e5\u671f\u683c\u5f0f\uff0c\u81ea\u884c\u4fee\u6539\u65e5\u671f\u683c\u5f0f\u5316\u4e32\u5373\u53ef\uff0c\u6bd4\u5982\u4fee\u6539\u4e3a<strong>'%Y\/%m\/%d'<\/strong>\uff0c\u7ed3\u679c\u8bf7\u81ea\u884c\u5c1d\u8bd5\u3002<\/p>\n\n\n\n<p>\u53e6\u5916\u8fd8\u6709\u5176\u5b83\u65b9\u6cd5\uff0c\u6bd4\u5982\u5b58\u50a8\u8fc7\u7a0b\u5b9e\u73b0\uff0c\u6216\u8005\u81ea\u5b9a\u4e49\u51fd\u6570\u5b9e\u73b0\u5747\u53ef\uff0c\u8bf7\u81ea\u884c\u67e5\u9605\u3002 \u200b<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u200b\u8981\u60f3\u5728 MySQL \u4e2d\u76f4\u63a5\u7528 SQL \u751f\u6210\u8fde\u7eed\u65e5\u671f\uff0c\u6709\u4e00\u79cd\u751f\u6210\u65b9\u6cd5\u662f\u53ef\u4ee5\u501f\u52a9 mysql \u7528\u6237\u4e0b\u7684 help [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[800],"tags":[186,604,201,305,873],"class_list":["post-5195","post","type-post","status-publish","format-standard","hentry","category-mysql","tag-mysql","tag-sql","tag-201","tag-305","tag-873"],"_links":{"self":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/5195","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=5195"}],"version-history":[{"count":1,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/5195\/revisions"}],"predecessor-version":[{"id":5196,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/5195\/revisions\/5196"}],"wp:attachment":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5195"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}