{"id":15843,"date":"2023-12-04T23:29:48","date_gmt":"2023-12-04T15:29:48","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=15843"},"modified":"2023-12-04T23:30:54","modified_gmt":"2023-12-04T15:30:54","slug":"oracle-zhong-cha-chu-liang-zhang-biao-zhong-xiang","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/oracle-zhong-cha-chu-liang-zhang-biao-zhong-xiang\/","title":{"rendered":"Oracle \u4e2d\u67e5\u51fa\u4e24\u5f20\u8868\u4e2d\u76f8\u540c\u7684\u6570\u636e\uff1f"},"content":{"rendered":"<p>\u5728 Oracle \u4e2d\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528 <code>JOIN<\/code> \u6216 <code>INTERSECT<\/code> \u7b49\u65b9\u6cd5\u6765\u67e5\u627e\u4e24\u5f20\u8868\u4e2d\u76f8\u540c\u7684\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u4e24\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3>1. \u4f7f\u7528 INNER JOIN\uff1a<\/h3>\n<pre><code class=\"language-sql  line-numbers\">SELECT t1.*\nFROM table1 t1\nINNER JOIN table2 t2 ON t1.common_column = t2.common_column;\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u67e5\u8be2\u4f7f\u7528\u4e86 <code>INNER JOIN<\/code> \u6765\u8fde\u63a5\u4e24\u5f20\u8868\uff0c\u5176\u4e2d <code>common_column<\/code> \u662f\u4e24\u5f20\u8868\u4e2d\u76f8\u540c\u7684\u5217\u3002\u8fd9\u5c06\u8fd4\u56de\u4e24\u5f20\u8868\u4e2d\u5171\u6709\u7684\u6570\u636e\u3002<\/p>\n<h3>2. \u4f7f\u7528 INTERSECT\uff1a<\/h3>\n<pre><code class=\"language-sql  line-numbers\">SELECT * FROM table1\nINTERSECT\nSELECT * FROM table2;\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u67e5\u8be2\u4f7f\u7528\u4e86 <code>INTERSECT<\/code> \u64cd\u4f5c\u7b26\uff0c\u5b83\u8fd4\u56de\u4e24\u4e2a\u67e5\u8be2\u7ed3\u679c\u7684\u4ea4\u96c6\uff0c\u5373\u4e24\u5f20\u8868\u4e2d\u76f8\u540c\u7684\u6570\u636e\u3002<\/p>\n<p>\u8bf7\u786e\u4fdd\u5c06 <code>common_column<\/code> \u66ff\u6362\u4e3a\u5b9e\u9645\u4e24\u5f20\u8868\u4e2d\u76f8\u540c\u7684\u5217\u540d\u3002\u9009\u62e9\u4f7f\u7528\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u4f60\u7684\u9700\u6c42\u548c\u6570\u636e\u7684\u7ed3\u6784\u3002 <code>JOIN<\/code> \u66f4\u9002\u7528\u4e8e\u9700\u8981\u8fd4\u56de\u5176\u4ed6\u8868\u4e2d\u7684\u5217\u7684\u60c5\u51b5\uff0c\u800c <code>INTERSECT<\/code> \u66f4\u7b80\u6d01\uff0c\u9002\u7528\u4e8e\u53ea\u5173\u5fc3\u4e24\u5f20\u8868\u4e2d\u76f8\u540c\u6570\u636e\u7684\u60c5\u51b5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Oracle \u4e2d\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528 JOIN \u6216 INTERSECT \u7b49\u65b9\u6cd5\u6765\u67e5\u627e\u4e24\u5f20\u8868\u4e2d\u76f8\u540c\u7684\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u4e24\u79cd [&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-15843","post","type-post","status-publish","format-standard","hentry","category-oracel"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15843","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=15843"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15843\/revisions"}],"predecessor-version":[{"id":15844,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15843\/revisions\/15844"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=15843"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=15843"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=15843"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}