{"id":15392,"date":"2023-12-04T19:52:04","date_gmt":"2023-12-04T11:52:04","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=15392"},"modified":"2023-12-04T19:52:53","modified_gmt":"2023-12-04T11:52:53","slug":"oracle-shu-ju-biao-zhong-shuo-shuo-ke-yi-you-duo-g","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/oracle-shu-ju-biao-zhong-shuo-shuo-ke-yi-you-duo-g\/","title":{"rendered":"Oracle \u6570\u636e\u8868\u4e2d\u8bf4\u8bf4\u53ef\u4ee5\u6709\u591a\u4e2a\u4e3b\u952e\uff1f"},"content":{"rendered":"<p>\u5728 Oracle \u6570\u636e\u8868\u4e2d\uff0c\u4e00\u4e2a\u8868\u53ea\u80fd\u6709\u4e00\u4e2a\u4e3b\u952e\uff0c\u4f46\u662f\u53ef\u4ee5\u6709\u591a\u4e2a\u5217\u7ec4\u6210\u590d\u5408\u4e3b\u952e\u3002\u590d\u5408\u4e3b\u952e\u7531\u591a\u4e2a\u5217\u7ec4\u6210\uff0c\u4f5c\u4e3a\u552f\u4e00\u6807\u8bc6\u8868\u4e2d\u7684\u8bb0\u5f55\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5047\u8bbe\u6709\u4e00\u4e2a\u8868 <code>employees<\/code> \u5305\u542b <code>employee_id<\/code> \u548c <code>department_id<\/code> \u4e24\u5217\uff0c\u5b83\u4eec\u5171\u540c\u5b9a\u4e49\u4e86\u552f\u4e00\u6027\u7ea6\u675f\uff0c\u90a3\u4e48\u53ef\u4ee5\u5c06\u5b83\u4eec\u5b9a\u4e49\u4e3a\u590d\u5408\u4e3b\u952e\u3002<\/p>\n<p>\u521b\u5efa\u590d\u5408\u4e3b\u952e\u7684\u793a\u4f8b SQL \u8bed\u53e5\uff1a<\/p>\n<pre><code class=\"language-sql  line-numbers\">CREATE TABLE employees (\n  employee_id   NUMBER,\n  department_id NUMBER,\n  -- \u5176\u4ed6\u5217\u548c\u7ea6\u675f\n  CONSTRAINT pk_employees PRIMARY KEY (employee_id, department_id)\n);\n<\/code><\/pre>\n<p>\u8fd9\u6837\u7684\u8bbe\u7f6e\u786e\u4fdd\u4e86\u8868\u4e2d\u6bcf\u4e2a <code>employee_id<\/code> \u548c <code>department_id<\/code> \u7ec4\u5408\u7684\u552f\u4e00\u6027\uff0c\u4ee3\u8868\u4e86\u590d\u5408\u4e3b\u952e\u3002\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>employee_id<\/code> \u548c <code>department_id<\/code> \u5171\u540c\u7ec4\u6210\u4e86\u590d\u5408\u4e3b\u952e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Oracle \u6570\u636e\u8868\u4e2d\uff0c\u4e00\u4e2a\u8868\u53ea\u80fd\u6709\u4e00\u4e2a\u4e3b\u952e\uff0c\u4f46\u662f\u53ef\u4ee5\u6709\u591a\u4e2a\u5217\u7ec4\u6210\u590d\u5408\u4e3b\u952e\u3002\u590d\u5408\u4e3b\u952e\u7531\u591a\u4e2a\u5217\u7ec4\u6210\uff0c\u4f5c\u4e3a\u552f\u4e00 [&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-15392","post","type-post","status-publish","format-standard","hentry","category-oracel"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15392","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=15392"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15392\/revisions"}],"predecessor-version":[{"id":15393,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15392\/revisions\/15393"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=15392"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=15392"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=15392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}