{"id":75812,"date":"2024-10-16T01:26:16","date_gmt":"2024-10-15T17:26:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/75812\/"},"modified":"2024-10-16T01:26:16","modified_gmt":"2024-10-15T17:26:16","slug":"mysql-%e6%9f%a5%e8%a9%a2%e7%b5%90%e6%9e%9c%e9%9b%86%e4%b8%ad%e5%be%97%e5%88%b0%e8%a8%98%e9%8c%84%e8%a1%8c%e8%99%9f%e7%9a%84%e5%af%a6%e7%8f%be","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/75812\/","title":{"rendered":"MySQL \u67e5\u8a62\u7d50\u679c\u96c6\u4e2d\u5f97\u5230\u8a18\u9304\u884c\u865f\u7684\u5be6\u73fe"},"content":{"rendered":"<h1 id=\"mysql-%e6%9f%a5%e8%a9%a2%e7%b5%90%e6%9e%9c%e9%9b%86%e4%b8%ad%e5%be%97%e5%88%b0%e8%a8%98%e9%8c%84%e8%a1%8c%e8%99%9f%e7%9a%84%e5%af%a6%e7%8f%be-yECNBRlNmI\">MySQL \u67e5\u8a62\u7d50\u679c\u96c6\u4e2d\u5f97\u5230\u8a18\u9304\u884c\u865f\u7684\u5be6\u73fe<\/h1>\n<p>\u5728\u4f7f\u7528 MySQL \u6578\u64da\u5eab\u9032\u884c\u67e5\u8a62\u6642\uff0c\u958b\u767c\u8005\u7d93\u5e38\u9700\u8981\u7372\u53d6\u67e5\u8a62\u7d50\u679c\u96c6\u4e2d\u7684\u884c\u865f\u3002\u884c\u865f\u4e0d\u50c5\u80fd\u5e6b\u52a9\u7528\u6236\u66f4\u597d\u5730\u7406\u89e3\u6578\u64da\u7684\u6392\u5217\u9806\u5e8f\uff0c\u9084\u80fd\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u7528\u65bc\u6578\u64da\u7684\u5206\u9801\u986f\u793a\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 MySQL \u4e2d\u5be6\u73fe\u67e5\u8a62\u7d50\u679c\u96c6\u7684\u884c\u865f\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e8%ae%8a%e9%87%8f%e5%af%a6%e7%8f%be%e8%a1%8c%e8%99%9f-yECNBRlNmI\">\u4f7f\u7528\u8b8a\u91cf\u5be6\u73fe\u884c\u865f<\/h2>\n<p>\u5728 MySQL \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u7528\u6236\u5b9a\u7fa9\u7684\u8b8a\u91cf\u4f86\u751f\u6210\u884c\u865f\u3002\u9019\u7a2e\u65b9\u6cd5\u76f8\u5c0d\u7c21\u55ae\uff0c\u9069\u5408\u65bc\u5c0f\u578b\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u57fa\u672c\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT @rownum := @rownum + 1 AS \u884c\u865f, t.*\nFROM (SELECT @rownum := 0) r, your_table t;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u6211\u5011\u9996\u5148\u521d\u59cb\u5316\u4e00\u500b\u8b8a\u91cf @rownum\uff0c\u7136\u5f8c\u5728\u9078\u64c7\u7684\u7d50\u679c\u96c6\u4e2d\u70ba\u6bcf\u4e00\u884c\u589e\u52a0 1\u3002\u9019\u6a23\uff0c\u6211\u5011\u5c31\u80fd\u5920\u5728\u67e5\u8a62\u7d50\u679c\u4e2d\u7372\u5f97\u884c\u865f\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-row_number-%e5%87%bd%e6%95%b8-yECNBRlNmI\">\u4f7f\u7528 ROW_NUMBER() \u51fd\u6578<\/h2>\n<p>\u5f9e MySQL 8.0 \u7248\u672c\u958b\u59cb\uff0cMySQL \u5f15\u5165\u4e86\u7a97\u53e3\u51fd\u6578\uff0c\u9019\u4f7f\u5f97\u7372\u53d6\u884c\u865f\u8b8a\u5f97\u66f4\u52a0\u7c21\u55ae\u548c\u9ad8\u6548\u3002\u53ef\u4ee5\u4f7f\u7528 <code>ROW_NUMBER()<\/code> \u51fd\u6578\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>SELECT ROW_NUMBER() OVER (ORDER BY your_column) AS \u884c\u865f, *\nFROM your_table;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c<code>ROW_NUMBER() OVER (ORDER BY your_column)<\/code> \u5c07\u6839\u64da\u6307\u5b9a\u7684\u5217\u9032\u884c\u6392\u5e8f\uff0c\u4e26\u70ba\u6bcf\u4e00\u884c\u5206\u914d\u4e00\u500b\u552f\u4e00\u7684\u884c\u865f\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u7c21\u6f54\uff0c\u800c\u4e14\u5728\u8655\u7406\u5927\u578b\u6578\u64da\u96c6\u6642\u6027\u80fd\u66f4\u4f73\u3002<\/p>\n<h2 id=\"%e8%a1%8c%e8%99%9f%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-yECNBRlNmI\">\u884c\u865f\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u884c\u865f\u5728\u8a31\u591a\u5834\u666f\u4e2d\u90fd\u975e\u5e38\u6709\u7528\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u61c9\u7528\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u5206\u9801\uff1a<\/strong>\u5728\u986f\u793a\u5927\u91cf\u6578\u64da\u6642\uff0c\u884c\u865f\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u9032\u884c\u5206\u9801\uff0c\u5f9e\u800c\u63d0\u9ad8\u7528\u6236\u9ad4\u9a57\u3002<\/li>\n<li><strong>\u6578\u64da\u6392\u5e8f\uff1a<\/strong>\u884c\u865f\u53ef\u4ee5\u7528\u65bc\u986f\u793a\u6578\u64da\u7684\u6392\u5e8f\u7d50\u679c\uff0c\u5e6b\u52a9\u7528\u6236\u5feb\u901f\u627e\u5230\u6240\u9700\u7684\u4fe1\u606f\u3002<\/li>\n<li><strong>\u6578\u64da\u5206\u6790\uff1a<\/strong>\u5728\u9032\u884c\u6578\u64da\u5206\u6790\u6642\uff0c\u884c\u865f\u53ef\u4ee5\u5e6b\u52a9\u5206\u6790\u5e2b\u66f4\u597d\u5730\u7406\u89e3\u6578\u64da\u7684\u7d50\u69cb\u548c\u5206\u4f48\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-yECNBRlNmI\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528\u884c\u865f\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u884c\u865f\u7684\u751f\u6210\u662f\u57fa\u65bc\u67e5\u8a62\u7684\u7d50\u679c\u96c6\uff0c\u56e0\u6b64\u5728\u4e0d\u540c\u7684\u67e5\u8a62\u4e2d\uff0c\u884c\u865f\u53ef\u80fd\u6703\u6709\u6240\u4e0d\u540c\u3002<\/li>\n<li>\u5728\u4f7f\u7528\u7a97\u53e3\u51fd\u6578\u6642\uff0c\u78ba\u4fdd MySQL \u7248\u672c\u70ba 8.0 \u6216\u4ee5\u4e0a\uff0c\u5426\u5247\u5c07\u7121\u6cd5\u4f7f\u7528 <code>ROW_NUMBER()<\/code> \u51fd\u6578\u3002<\/li>\n<li>\u5c0d\u65bc\u5927\u578b\u6578\u64da\u96c6\uff0c\u4f7f\u7528\u7a97\u53e3\u51fd\u6578\u7684\u6027\u80fd\u901a\u5e38\u512a\u65bc\u4f7f\u7528\u7528\u6236\u5b9a\u7fa9\u8b8a\u91cf\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-yECNBRlNmI\">\u7e3d\u7d50<\/h2>\n<p>\u5728 MySQL \u4e2d\u7372\u53d6\u67e5\u8a62\u7d50\u679c\u96c6\u7684\u884c\u865f\u53ef\u4ee5\u901a\u904e\u7528\u6236\u5b9a\u7fa9\u8b8a\u91cf\u6216\u7a97\u53e3\u51fd\u6578\u4f86\u5be6\u73fe\u3002\u9019\u4e9b\u65b9\u6cd5\u4e0d\u50c5\u7c21\u55ae\u6613\u7528\uff0c\u9084\u80fd\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u3002\u7121\u8ad6\u662f\u5728\u6578\u64da\u5206\u9801\u3001\u6392\u5e8f\u9084\u662f\u5206\u6790\u4e2d\uff0c\u884c\u865f\u90fd\u80fd\u63d0\u4f9b\u91cd\u8981\u7684\u5e6b\u52a9\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u5c07\u662f\u660e\u667a\u4e4b\u8209\uff0c\u7279\u5225\u662f\u5728\u9999\u6e2f\u5730\u5340\uff0c<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u80fd\u5920\u63d0\u4f9b\u7a69\u5b9a\u7684\u6027\u80fd\u548c\u9748\u6d3b\u7684\u914d\u7f6e\u9078\u64c7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728 MySQL \u67e5\u8a62\u7d50\u679c\u96c6\u4e2d\u7372\u53d6\u8a18\u9304\u884c\u865f\u7684\u5be6\u73fe\u65b9\u6cd5\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\u8207\u53ef\u8b80\u6027\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-75812","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75812","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=75812"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75812\/revisions"}],"predecessor-version":[{"id":75813,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75812\/revisions\/75813"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=75812"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=75812"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=75812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}