{"id":15513,"date":"2023-12-04T20:30:07","date_gmt":"2023-12-04T12:30:07","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=15513"},"modified":"2023-12-04T20:30:39","modified_gmt":"2023-12-04T12:30:39","slug":"oracle-zhong-ru-he-zhi-xian-shi-zhong-fu-shu-ju","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/oracle-zhong-ru-he-zhi-xian-shi-zhong-fu-shu-ju\/","title":{"rendered":"Oracle \u4e2d\u5982\u4f55\u53ea\u663e\u793a\u91cd\u590d\u6570\u636e\uff1f"},"content":{"rendered":"<p>\u8981\u5728 Oracle \u4e2d\u53ea\u663e\u793a\u91cd\u590d\u6570\u636e\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8be2\u6765\u7b5b\u9009\u51fa\u91cd\u590d\u884c\uff1a<\/p>\n<pre><code class=\"language-sql  line-numbers\">SELECT column1, column2, COUNT(*)\nFROM your_table\nGROUP BY column1, column2\nHAVING COUNT(*) &gt; 1;\n<\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u67e5\u8be2\u4e2d\uff0c\u66ff\u6362 <code>your_table<\/code> \u4e3a\u4f60\u7684\u8868\u540d\uff0c<code>column1<\/code> \u548c <code>column2<\/code> \u4e3a\u4f60\u60f3\u8981\u68c0\u67e5\u91cd\u590d\u6027\u7684\u5217\u3002\u8fd9\u4e2a\u67e5\u8be2\u4f1a\u6309\u6307\u5b9a\u5217\u8fdb\u884c\u5206\u7ec4\uff0c\u5e76\u4e14\u4f7f\u7528 <code>COUNT(*)<\/code> \u51fd\u6570\u6765\u7edf\u8ba1\u6bcf\u7ec4\u7684\u884c\u6570\uff0c<code>HAVING COUNT(*) &gt; 1<\/code> \u5219\u7b5b\u9009\u51fa\u91cd\u590d\u7684\u884c\uff0c\u53ea\u663e\u793a\u90a3\u4e9b\u5728\u6307\u5b9a\u5217\u4e0a\u51fa\u73b0\u6b21\u6570\u8d85\u8fc7\u4e00\u6b21\u7684\u6570\u636e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8981\u5728 Oracle \u4e2d\u53ea\u663e\u793a\u91cd\u590d\u6570\u636e\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8be2\u6765\u7b5b\u9009\u51fa\u91cd\u590d\u884c\uff1a SELECT column [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[],"class_list":["post-15513","post","type-post","status-publish","format-standard","hentry","category-oracel"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15513","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=15513"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15513\/revisions"}],"predecessor-version":[{"id":15514,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15513\/revisions\/15514"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=15513"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=15513"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=15513"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}