{"id":95114,"date":"2024-10-19T22:21:19","date_gmt":"2024-10-19T14:21:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95114\/"},"modified":"2024-10-19T22:21:20","modified_gmt":"2024-10-19T14:21:20","slug":"oracle%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%af%ab%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95114\/","title":{"rendered":"Oracle\u5206\u9801\u67e5\u8a62\u8a9e\u53e5\u7684\u5beb\u6cd5"},"content":{"rendered":"<h1 id=\"oracle%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%af%ab%e6%b3%95-jYEDnwGZgD\">Oracle\u5206\u9801\u67e5\u8a62\u8a9e\u53e5\u7684\u5beb\u6cd5<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u5206\u9801\u67e5\u8a62\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002Oracle\u6578\u64da\u5eab\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u5be6\u73fe\u5206\u9801\u67e5\u8a62\uff0c\u672c\u6587\u5c07\u4ecb\u7d39\u5e7e\u7a2e\u5e38\u7528\u7684\u5beb\u6cd5\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2%ef%bc%9f-jYEDnwGZgD\">\u4ec0\u9ebc\u662f\u5206\u9801\u67e5\u8a62\uff1f<\/h2>\n<p>\u5206\u9801\u67e5\u8a62\u662f\u6307\u5c07\u67e5\u8a62\u7d50\u679c\u5206\u6210\u591a\u500b\u9801\u9762\u986f\u793a\uff0c\u901a\u5e38\u7528\u65bc\u7528\u6236\u754c\u9762\u4e2d\uff0c\u4ee5\u4fbf\u7528\u6236\u80fd\u5920\u9010\u6b65\u67e5\u770b\u6578\u64da\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u7684\u53ef\u8b80\u6027\uff0c\u9084\u6e1b\u5c11\u4e86\u7cfb\u7d71\u7684\u8cc7\u6e90\u6d88\u8017\u3002<\/p>\n<h2 id=\"oracle%e4%b8%ad%e7%9a%84%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2%e6%96%b9%e6%b3%95-jYEDnwGZgD\">Oracle\u4e2d\u7684\u5206\u9801\u67e5\u8a62\u65b9\u6cd5<\/h2>\n<p>\u5728Oracle\u4e2d\uff0c\u5be6\u73fe\u5206\u9801\u67e5\u8a62\u7684\u4e3b\u8981\u65b9\u6cd5\u6709\u5169\u7a2e\uff1a\u4f7f\u7528ROWNUM\u548c\u4f7f\u7528ROW_NUMBER()\u51fd\u6578\u3002<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8rownum-jYEDnwGZgD\">1. \u4f7f\u7528ROWNUM<\/h3>\n<p>ROWNUM\u662f\u4e00\u500b\u865b\u64ec\u5217\uff0c\u8868\u793a\u67e5\u8a62\u7d50\u679c\u4e2d\u7684\u884c\u865f\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528ROWNUM\u7684\u57fa\u672c\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM (\n    SELECT a.*, ROWNUM rnum FROM (\n        SELECT * FROM your_table ORDER BY your_column\n    ) a WHERE ROWNUM &lt;= :max_row\n) WHERE rnum &gt; :min_row;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c:max_row\u548c:min_row\u662f\u7528\u4f86\u6307\u5b9a\u8981\u986f\u793a\u7684\u884c\u6578\u7bc4\u570d\u7684\u53c3\u6578\u3002\u9019\u7a2e\u65b9\u6cd5\u7684\u7f3a\u9ede\u662f\u9700\u8981\u5169\u6b21\u67e5\u8a62\uff0c\u6027\u80fd\u53ef\u80fd\u6703\u53d7\u5230\u5f71\u97ff\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8row_number%e5%87%bd%e6%95%b8-jYEDnwGZgD\">2. \u4f7f\u7528ROW_NUMBER()\u51fd\u6578<\/h3>\n<p>ROW_NUMBER()\u51fd\u6578\u662fOracle 9i\u53ca\u4ee5\u5f8c\u7248\u672c\u4e2d\u5f15\u5165\u7684\uff0c\u80fd\u5920\u66f4\u9748\u6d3b\u5730\u9032\u884c\u5206\u9801\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528ROW_NUMBER()\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM (\n    SELECT a.*, ROW_NUMBER() OVER (ORDER BY your_column) AS row_num\n    FROM your_table a\n) WHERE row_num &gt; :min_row AND row_num &lt;= :max_row;<\/code><\/pre>\n<p>\u9019\u7a2e\u65b9\u6cd5\u7684\u512a\u9ede\u5728\u65bc\u5b83\u53ea\u9700\u4e00\u6b21\u67e5\u8a62\uff0c\u4e26\u4e14\u80fd\u5920\u66f4\u597d\u5730\u63a7\u5236\u6392\u5e8f\u548c\u5206\u9801\u3002<\/p>\n<h2 id=\"%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2%e7%9a%84%e6%80%a7%e8%83%bd%e8%80%83%e9%87%8f-jYEDnwGZgD\">\u5206\u9801\u67e5\u8a62\u7684\u6027\u80fd\u8003\u91cf<\/h2>\n<p>\u5728\u9032\u884c\u5206\u9801\u67e5\u8a62\u6642\uff0c\u6027\u80fd\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\u56e0\u7d20\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u512a\u5316\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u7d22\u5f15\uff1a<\/strong>\u78ba\u4fdd\u5c0d\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u5217\u5efa\u7acb\u7d22\u5f15\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002<\/li>\n<li><strong>\u9650\u5236\u8fd4\u56de\u7684\u5217\uff1a<\/strong>\u53ea\u9078\u64c7\u5fc5\u8981\u7684\u5217\uff0c\u907f\u514d\u4f7f\u7528SELECT *\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u50b3\u8f38\u7684\u8ca0\u64d4\u3002<\/li>\n<li><strong>\u4f7f\u7528\u5408\u9069\u7684\u6392\u5e8f\uff1a<\/strong>\u5728ORDER BY\u5b50\u53e5\u4e2d\u4f7f\u7528\u7d22\u5f15\u5217\uff0c\u4ee5\u63d0\u9ad8\u6392\u5e8f\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-jYEDnwGZgD\">\u7d50\u8ad6<\/h2>\n<p>\u5206\u9801\u67e5\u8a62\u5728Oracle\u6578\u64da\u5eab\u4e2d\u662f\u4e00\u500b\u91cd\u8981\u7684\u529f\u80fd\uff0c\u80fd\u5920\u6709\u6548\u5730\u7ba1\u7406\u548c\u986f\u793a\u5927\u91cf\u6578\u64da\u3002\u901a\u904e\u4f7f\u7528ROWNUM\u6216ROW_NUMBER()\u51fd\u6578\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u65b9\u6cd5\u4f86\u5be6\u73fe\u5206\u9801\u67e5\u8a62\u3002\u540c\u6642\uff0c\u6ce8\u610f\u6027\u80fd\u512a\u5316\u4e5f\u662f\u78ba\u4fdd\u67e5\u8a62\u6548\u7387\u7684\u95dc\u9375\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u548c\u5176\u4ed6\u6280\u8853\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\uff0c\u6211\u5011\u63d0\u4f9b\u5404\u7a2e <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7ba1\u7406\u60a8\u7684\u6578\u64da\u548c\u61c9\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3Oracle\u5206\u9801\u67e5\u8a62\u8a9e\u53e5\u7684\u5beb\u6cd5\uff0c\u638c\u63e1\u5982\u4f55\u6709\u6548\u5730\u8655\u7406\u5927\u91cf\u6578\u64da\uff0c\u63d0\u5347\u67e5\u8a62\u6548\u7387\u8207\u6027\u80fd\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-95114","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95114","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=95114"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95114\/revisions"}],"predecessor-version":[{"id":95115,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95114\/revisions\/95115"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95114"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95114"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}