{"id":79630,"date":"2024-10-16T13:22:15","date_gmt":"2024-10-16T05:22:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/79630\/"},"modified":"2024-10-16T13:22:15","modified_gmt":"2024-10-16T05:22:15","slug":"mysql%e6%8c%87%e4%bb%a4-rows%ef%bc%88%e8%a1%8c%e6%95%b8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/79630\/","title":{"rendered":"MySQL\u6307\u4ee4: ROWS\uff08\u884c\u6578\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-rows%ef%bc%88%e8%a1%8c%e6%95%b8%ef%bc%89-viiBrEfvbK\">MySQL\u6307\u4ee4: ROWS\uff08\u884c\u6578\uff09<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cMySQL\u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u3002\u5b83\u63d0\u4f9b\u4e86\u591a\u7a2e\u6307\u4ee4\u4f86\u64cd\u4f5c\u548c\u67e5\u8a62\u6578\u64da\uff0c\u5176\u4e2d\u201cROWS\u201d\u6307\u4ee4\u5728\u8655\u7406\u6578\u64da\u884c\u6578\u6642\u5c24\u70ba\u91cd\u8981\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eMySQL\u4e2d\u7684ROWS\u6307\u4ee4\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u61c9\u7528\u5834\u666f\u3002<\/p>\n<h2 id=\"rows%e6%8c%87%e4%bb%a4%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-viiBrEfvbK\">ROWS\u6307\u4ee4\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728MySQL\u4e2d\uff0cROWS\u6307\u4ee4\u901a\u5e38\u7528\u65bc\u9650\u5236\u67e5\u8a62\u7d50\u679c\u7684\u884c\u6578\u3002\u9019\u5c0d\u65bc\u9700\u8981\u5f9e\u5927\u578b\u6578\u64da\u96c6\u4e2d\u63d0\u53d6\u7279\u5b9a\u6578\u91cf\u7684\u6578\u64da\u6642\u975e\u5e38\u6709\u7528\u3002ROWS\u6307\u4ee4\u53ef\u4ee5\u8207SELECT\u8a9e\u53e5\u7d50\u5408\u4f7f\u7528\uff0c\u4ee5\u4fbf\u66f4\u6709\u6548\u5730\u7ba1\u7406\u67e5\u8a62\u7d50\u679c\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8limit%e5%92%8coffset-viiBrEfvbK\">\u4f7f\u7528LIMIT\u548cOFFSET<\/h2>\n<p>ROWS\u6307\u4ee4\u7684\u5e38\u898b\u7528\u6cd5\u662f\u8207LIMIT\u548cOFFSET\u7d50\u5408\u4f7f\u7528\u3002LIMIT\u7528\u65bc\u6307\u5b9a\u8fd4\u56de\u7684\u6700\u5927\u884c\u6578\uff0c\u800cOFFSET\u5247\u7528\u65bc\u6307\u5b9a\u5f9e\u54ea\u4e00\u884c\u958b\u59cb\u8fd4\u56de\u6578\u64da\u3002<\/p>\n<pre><code>SELECT * FROM \u8868\u540d LIMIT \u884c\u6578 OFFSET \u504f\u79fb\u91cf;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u201cusers\u201d\u7684\u8868\uff0c\u4e26\u5e0c\u671b\u7372\u53d6\u5f9e\u7b2c11\u884c\u958b\u59cb\u768410\u884c\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT * FROM users LIMIT 10 OFFSET 10;<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u7b2c11\u5230\u7b2c20\u884c\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"row_number%e5%87%bd%e6%95%b8-viiBrEfvbK\">ROW_NUMBER()\u51fd\u6578<\/h2>\n<p>\u9664\u4e86LIMIT\u548cOFFSET\uff0cMySQL\u9084\u63d0\u4f9b\u4e86ROW_NUMBER()\u51fd\u6578\uff0c\u9019\u662f\u4e00\u500b\u7a97\u53e3\u51fd\u6578\uff0c\u7528\u65bc\u70ba\u67e5\u8a62\u7d50\u679c\u4e2d\u7684\u6bcf\u4e00\u884c\u5206\u914d\u4e00\u500b\u552f\u4e00\u7684\u884c\u865f\u3002\u9019\u5728\u9700\u8981\u5c0d\u6578\u64da\u9032\u884c\u6392\u5e8f\u548c\u5206\u7d44\u6642\u7279\u5225\u6709\u7528\u3002<\/p>\n<pre><code>SELECT *, ROW_NUMBER() OVER (ORDER BY \u5217\u540d) AS row_num FROM \u8868\u540d;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u70ba\u201cusers\u201d\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\u5206\u914d\u4e00\u500b\u884c\u865f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT *, ROW_NUMBER() OVER (ORDER BY created_at) AS row_num FROM users;<\/code><\/pre>\n<p>\u9019\u5c07\u6839\u64da\u201ccreated_at\u201d\u5217\u7684\u503c\u70ba\u6bcf\u4e00\u884c\u5206\u914d\u4e00\u500b\u884c\u865f\u3002<\/p>\n<h2 id=\"%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-viiBrEfvbK\">\u61c9\u7528\u5834\u666f<\/h2>\n<p>ROWS\u6307\u4ee4\u5728\u591a\u7a2e\u5834\u666f\u4e2d\u90fd\u975e\u5e38\u6709\u7528\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><strong>\u5206\u9801\u67e5\u8a62\uff1a<\/strong>\u5728\u986f\u793a\u5927\u91cf\u6578\u64da\u6642\uff0c\u5206\u9801\u67e5\u8a62\u53ef\u4ee5\u63d0\u9ad8\u7528\u6236\u9ad4\u9a57\u3002\u901a\u904e\u4f7f\u7528LIMIT\u548cOFFSET\uff0c\u53ef\u4ee5\u8f15\u9b06\u5be6\u73fe\u5206\u9801\u529f\u80fd\u3002<\/li>\n<li><strong>\u6578\u64da\u5206\u6790\uff1a<\/strong>\u4f7f\u7528ROW_NUMBER()\u51fd\u6578\u53ef\u4ee5\u5c0d\u6578\u64da\u9032\u884c\u6392\u5e8f\u548c\u5206\u7d44\uff0c\u9019\u5c0d\u65bc\u6578\u64da\u5206\u6790\u548c\u5831\u544a\u751f\u6210\u975e\u5e38\u91cd\u8981\u3002<\/li>\n<li><strong>\u6027\u80fd\u512a\u5316\uff1a<\/strong>\u901a\u904e\u9650\u5236\u67e5\u8a62\u7d50\u679c\u7684\u884c\u6578\uff0c\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u8ca0\u64d4\uff0c\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-viiBrEfvbK\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u4e2d\u7684ROWS\u6307\u4ee4\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u6709\u6548\u5730\u7ba1\u7406\u548c\u67e5\u8a62\u6578\u64da\u3002\u7121\u8ad6\u662f\u4f7f\u7528LIMIT\u548cOFFSET\u9032\u884c\u5206\u9801\u67e5\u8a62\uff0c\u9084\u662f\u5229\u7528ROW_NUMBER()\u51fd\u6578\u9032\u884c\u6578\u64da\u5206\u6790\uff0cROWS\u6307\u4ee4\u90fd\u80fd\u63d0\u4f9b\u9748\u6d3b\u6027\u548c\u6548\u7387\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u82e5\u60a8\u5c0d\u65bc<code>VPS<\/code>\u3001<code>\u9999\u6e2fvps<\/code>\u6216<code>\u4e91\u670d\u52a1\u5668<\/code>\u7b49\u670d\u52d9\u611f\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a> \u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u6307\u4ee4ROWS\uff0c\u638c\u63e1\u5982\u4f55\u6709\u6548\u67e5\u8a62\u548c\u7ba1\u7406\u6578\u64da\u884c\u6578\uff0c\u63d0\u5347\u6578\u64da\u5eab\u64cd\u4f5c\u6548\u7387\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-79630","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79630","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=79630"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79630\/revisions"}],"predecessor-version":[{"id":79631,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79630\/revisions\/79631"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=79630"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=79630"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=79630"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}