{"id":2827,"date":"2016-07-20T18:06:25","date_gmt":"2016-07-20T10:06:25","guid":{"rendered":"http:\/\/www.menglanglang.cn\/?p=2827"},"modified":"2016-07-20T18:06:25","modified_gmt":"2016-07-20T10:06:25","slug":"ora-39726%e4%b8%8d%e6%94%af%e6%8c%81%e5%af%b9%e5%8e%8b%e7%bc%a9%e8%a1%a8%e6%89%a7%e8%a1%8c%e6%b7%bb%e5%8a%a0%e5%88%a0%e9%99%a4%e5%88%97%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"http:\/\/www.menglanglang.cn\/?p=2827","title":{"rendered":"ORA-39726:\u4e0d\u652f\u6301\u5bf9\u538b\u7f29\u8868\u6267\u884c\u6dfb\u52a0\/\u5220\u9664\u5217\u64cd\u4f5c"},"content":{"rendered":"<p>\u5bf9 Oracle \u6570\u636e\u5e93\u4e2d\u7684\u8868\u8fdb\u884c\u6dfb\u52a0\u6216\u8005\u5220\u9664\u5217\u7b49\u64cd\u4f5c\u65f6\uff0c\u6709\u65f6\u4f1a\u62a5\u5982\u4e0b\u9519\u8bef\uff1a<\/p>\n<p><code>ORA-39726:\u4e0d\u652f\u6301\u5bf9\u538b\u7f29\u8868\u6267\u884c\u6dfb\u52a0\/\u5220\u9664\u5217\u64cd\u4f5c<\/code><\/p>\n<p>\u7a76\u5176\u539f\u56e0\uff0c\u662f\u56e0\u4e3a\u628a\u8868\u538b\u7f29\u4e86\uff0c\u538b\u7f29\u540e\u7684\u8868\u4e0d\u80fd\u8fdb\u884c\u5217\u7684\u6dfb\u52a0\u548c\u5220\u9664\u7b49\u64cd\u4f5c\u3002<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6cd5\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u628a\u5217\u8bbe\u7f6e\u4e3a UNUSED \u518d\u5220\u9664\uff0c\u5982\u679c\u8fd8\u62a5\u9519\uff0c\u76f4\u63a5\u628a\u8868\u89e3\u538b\u7f29\u518d\u5220\u9664\u3002<\/strong><\/li>\n<li><strong>\u76f4\u63a5\u628a\u8868\u89e3\u538b\u7f29\uff0c\u7136\u540e\u76f4\u63a5\u5220\u9664\u5217\u3002<\/strong><\/li>\n<li><strong>\u76f4\u63a5\u628a\u8868\u89e3\u538b\u7f29\uff0c\u628a\u5217\u8bbe\u7f6e\u4e3a UNUSED \u518d\u5220\u9664\u3002<\/strong><\/li>\n<\/ul>\n<p>\u8981\u5220\u9664\u5217\u65f6\uff0c\u5c06\u8981\u5220\u9664\u7684\u5217\u8bbe\u7f6e\u4e3a UNUSED COLUMN \u518d\u8fdb\u884c\u5220\u9664\uff0c\u8bed\u53e5\u5982\u4e0b\uff1a<\/p>\n<pre><code>alter table \u8868\u540d set unused column \u5217\u540d;\r\n<\/code><\/pre>\n<pre><code>alter table \u8868\u540d drop unused columns;<\/code><\/pre>\n<p>\u4f46\u6709\u65f6\u5019\u8fd8\u662f\u62a5\u540c\u6837\u7684\u9519\u8bef\uff0c\u65e0\u6cd5\u5220\u9664 UNUSED COLUMN\uff0c\u8fd9\u65f6\uff0c\u53ef\u4ee5\u8bd5\u8bd5\uff0c\u76f4\u63a5\u628a\u8be5\u8868\u89e3\u538b\u7f29\uff0c\u7136\u540e\u76f4\u63a5\u5220\u9664\u5217\u5373\u53ef\uff0c\u89e3\u538b\u7f29\u8868\u8bed\u53e5\u5982\u4e0b\uff1a<\/p>\n<p><code>alter table \u8868\u540d nocompress;<\/code><\/p>\n<p>\u5982\u679c\u89e3\u538b\u7f29\u540e\u5220\u9664\u5217\u8fd8\u4e0d\u597d\u7528\uff0c\u53ef\u4ee5\u7528\u4e0b\u9762\u8bed\u53e5\u89e3\u538b\u7f29\u8868\uff1a<\/p>\n<p><code><span style=\"color: #ff0000;\">alter table \u8868\u540d move nocompress;<\/span><\/code><\/p>\n<p>\u76f4\u63a5\u5220\u9664\u5217\uff0c\u5e94\u8be5\u80fd\u76f4\u63a5\u5220\u9664\uff0c\u5982\u679c\u8fd8\u62a5\u9519\uff0c\u53c2\u8003\u89e3\u51b3\u65b9\u6cd5\u7b2c 3 \u6761\u3002<\/p>\n<p>Good Luck\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5bf9 Oracle \u6570\u636e\u5e93\u4e2d\u7684\u8868\u8fdb\u884c\u6dfb\u52a0\u6216\u8005\u5220\u9664\u5217\u7b49\u64cd\u4f5c\u65f6\uff0c\u6709\u65f6\u4f1a\u62a5\u5982\u4e0b\u9519\u8bef\uff1a ORA-39726:\u4e0d\u652f\u6301\u5bf9\u538b\u7f29 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[648],"tags":[679,680,597],"class_list":["post-2827","post","type-post","status-publish","format-standard","hentry","category-error-warning","tag-oracle","tag-warning","tag-development-tools"],"_links":{"self":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/2827","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=2827"}],"version-history":[{"count":1,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/2827\/revisions"}],"predecessor-version":[{"id":2828,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/2827\/revisions\/2828"}],"wp:attachment":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2827"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2827"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2827"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}