{"id":15601,"date":"2023-12-04T21:06:29","date_gmt":"2023-12-04T13:06:29","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=15601"},"modified":"2023-12-04T21:07:26","modified_gmt":"2023-12-04T13:07:26","slug":"oracle-zhong-rowidrownum-de-ding-yi-dou-you-na-xie","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/oracle-zhong-rowidrownum-de-ding-yi-dou-you-na-xie\/","title":{"rendered":"Oracle \u4e2d rowid\uff0crownum \u7684\u5b9a\u4e49\u90fd\u6709\u54ea\u4e9b\uff1f"},"content":{"rendered":"<p>\u5728 Oracle \u4e2d\uff0c<code>ROWID<\/code> \u548c <code>ROWNUM<\/code> \u662f\u4e24\u4e2a\u4e0d\u540c\u7684\u6982\u5ff5\uff1a<\/p>\n<h3><a id=\"rowid%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>ROWID\uff1a<\/h3>\n<ul>\n<li><strong>\u5b9a\u4e49<\/strong>\uff1a<code>ROWID<\/code> \u662f Oracle \u4e2d\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u8868\u4e2d\u884c\u7684\u5185\u90e8\u8868\u793a\u65b9\u5f0f\uff0c\u662f\u4e00\u4e2a\u552f\u4e00\u7684\u5b57\u7b26\u4e32\u503c\u3002<\/li>\n<li><strong>\u7ed3\u6784<\/strong>\uff1a<code>ROWID<\/code> \u5305\u542b\u4e86\u6570\u636e\u5757\u5730\u5740\u3001\u884c\u5730\u5740\u548c\u6587\u4ef6\u6807\u8bc6\u7b49\u4fe1\u606f\uff0c\u53ef\u4ee5\u552f\u4e00\u5730\u6807\u8bc6\u6570\u636e\u5e93\u4e2d\u7684\u884c\u3002<\/li>\n<li><strong>\u7279\u70b9<\/strong>\uff1a<code>ROWID<\/code> \u662f\u6570\u636e\u5e93\u5185\u90e8\u7684\u6807\u8bc6\u7b26\uff0c\u53ef\u4ee5\u7528\u4e8e\u76f4\u63a5\u8bbf\u95ee\u6216\u5b9a\u4f4d\u884c\u6570\u636e\u3002<\/li>\n<li><strong>\u7528\u9014<\/strong>\uff1a\u901a\u5e38\u7528\u4e8e\u4f18\u5316\u67e5\u8be2\u3001\u5b9a\u4f4d\u7279\u5b9a\u884c\u6216\u8005\u4f5c\u4e3a\u8868\u7684\u4e3b\u952e\u3002<\/li>\n<\/ul>\n<h3><a id=\"rownum%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>ROWNUM\uff1a<\/h3>\n<ul>\n<li><strong>\u5b9a\u4e49<\/strong>\uff1a<code>ROWNUM<\/code> \u662f Oracle \u4e2d\u4e00\u4e2a\u4f2a\u5217\uff0c\u7528\u4e8e\u8868\u793a\u8fd4\u56de\u7684\u7ed3\u679c\u96c6\u4e2d\u7684\u884c\u53f7\u3002<\/li>\n<li><strong>\u751f\u6210<\/strong>\uff1a<code>ROWNUM<\/code> \u662f\u5728\u67e5\u8be2\u7ed3\u679c\u8fd4\u56de\u7ed9\u7528\u6237\u4e4b\u540e\u624d\u5206\u914d\u7684\uff0c\u5b83\u4f1a\u6839\u636e\u8fd4\u56de\u7684\u7ed3\u679c\u96c6\u884c\u6570\u8fdb\u884c\u9012\u589e\u3002<\/li>\n<li><strong>\u7279\u70b9<\/strong>\uff1a<code>ROWNUM<\/code> \u4e0d\u4f1a\u5728\u7ed3\u679c\u96c6\u4e2d\u6c38\u4e45\u5b58\u5728\uff0c\u5b83\u662f\u52a8\u6001\u751f\u6210\u7684\u884c\u53f7\u3002<\/li>\n<li><strong>\u7528\u9014<\/strong>\uff1a\u901a\u5e38\u7528\u4e8e\u5206\u9875\u67e5\u8be2\u6216\u9650\u5236\u7ed3\u679c\u96c6\u884c\u6570\uff0c\u4f8b\u5982 <code>WHERE ROWNUM &lt;= 10<\/code> \u53ef\u4ee5\u83b7\u53d6\u524d 10 \u884c\u6570\u636e\u3002<\/li>\n<\/ul>\n<p>\u603b\u7684\u6765\u8bf4\uff0c<code>ROWID<\/code> \u662f\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u8868\u4e2d\u884c\u7684\u5185\u90e8\u8868\u793a\u65b9\u5f0f\uff0c\u800c <code>ROWNUM<\/code> \u662f\u4e00\u4e2a\u4f2a\u5217\uff0c\u7528\u4e8e\u8868\u793a\u7ed3\u679c\u96c6\u4e2d\u7684\u884c\u53f7\uff0c\u5728\u5904\u7406\u7ed3\u679c\u96c6\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Oracle \u4e2d\uff0cROWID \u548c ROWNUM \u662f\u4e24\u4e2a\u4e0d\u540c\u7684\u6982\u5ff5\uff1a ROWID\uff1a \u5b9a\u4e49\uff1aROWID \u662f O [&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-15601","post","type-post","status-publish","format-standard","hentry","category-oracel"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15601","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=15601"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15601\/revisions"}],"predecessor-version":[{"id":15602,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15601\/revisions\/15602"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=15601"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=15601"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=15601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}