{"id":200254,"date":"2025-05-06T08:35:45","date_gmt":"2025-05-06T00:35:45","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200254\/"},"modified":"2025-05-06T08:35:45","modified_gmt":"2025-05-06T00:35:45","slug":"%e5%a6%82%e4%bd%95%e6%89%93%e4%b9%b1mysql%e8%a1%a8%e4%b8%ad%e6%8c%89%e6%8f%92%e5%85%a5%e9%a1%ba%e5%ba%8f%e6%8e%92%e5%88%97%e7%9a%84%e6%95%b0%e6%8d%ae%ef%bc%8c%e4%bd%bf%e5%85%b6%e9%9a%8f%e6%9c%ba","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200254\/","title":{"rendered":"\u5982\u4f55\u6253\u4e71MySQL\u8868\u4e2d\u6309\u63d2\u5165\u987a\u5e8f\u6392\u5217\u7684\u6570\u636e\uff0c\u4f7f\u5176\u968f\u673a\u6392\u5e8f\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5982\u4f55\u6253\u4e71MySQL\u8868\u4e2d\u6309\u63d2\u5165\u987a\u5e8f\u6392\u5217\u7684\u6570\u636e\uff0c\u4f7f\u5176\u968f\u673a\u6392\u5e8f\uff1f<\/h1>\n<p>\u600e\u4e48\u5165\u95e8\u6570\u636e\u5e93\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762\u4e3b\u673a\u5b9d\u8d1d\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300a\u5982\u4f55\u6253\u4e71MySQL\u8868\u4e2d\u6309\u63d2\u5165\u987a\u5e8f\u6392\u5217\u7684\u6570\u636e\uff0c\u4f7f\u5176\u968f\u673a\u6392\u5e8f\uff1f\u300b\uff0c\u6d89\u53ca\u5230\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241030\/17302696516721d1d3e104d.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>mysql\u6570\u636e\u987a\u5e8f\u6253\u4e71<\/strong><\/p>\n<p><strong>\u95ee\u9898\uff1a<\/strong><\/p>\n<p>\u5982\u4f55\u6253\u4e71mysql\u8868\u4e2d\u6309\u63d2\u5165\u987a\u5e8f\u6392\u5217\u76841\u4e07\u6761\u6570\u636e\u7684\u987a\u5e8f\uff0c\u4f7f\u5176\u968f\u673a\u6392\u5e8f\uff1f<\/p>\n<p><strong>\u56de\u7b54\uff1a<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528sql\u67e5\u8be2\u8bed\u53e5\u6765\u6253\u4e71\u6570\u636e\u987a\u5e8f\uff1a<\/p>\n<p><strong>\u65b9\u6cd5 1:<\/strong><\/p>\n<pre>select *\nfrom test1 as u\ninner join (select id from test1 where totalscore between 5 and 100 order by rand() limit 100) as t on t.id=u.id\nwhere 1<\/pre>\n<p><strong>\u65b9\u6cd5 2:<\/strong><\/p>\n<pre>SELECT * FROM student WHERE totalScore BETWEEN 5 AND 100 ORDER BY RAND() LIMIT 100;<\/pre>\n<p><strong>\u8bf4\u660e\uff1a<\/strong><\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a<\/strong>\u4f7f\u7528inner join\u5b50\u67e5\u8be2\uff0c\u4ece\u8868test1\u4e2d\u968f\u673a\u9009\u62e9100\u6761\u6570\u636e\uff08totalscore\u57285\u548c100\u4e4b\u95f4\uff09\u4f5c\u4e3a\u968f\u673a\u987a\u5e8f\u8868\uff0c\u7136\u540e\u4e0e\u4e3b\u8868test1\u8fdb\u884c\u8fde\u63a5\u3002<\/p>\n<p><strong>\u65b9\u6cd5 2\uff1a<\/strong>\u4f7f\u7528\u5e38\u89c4\u7684order by rand()\u8bed\u53e5\uff0c\u5bf9\u7b26\u5408\u6761\u4ef6\u7684\u6570\u636e\u8fdb\u884c\u968f\u673a\u6392\u5e8f\uff0c\u5e76\u9650\u5236\u8fd4\u56de100\u6761\u6570\u636e\u3002<\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<p>\u65b9\u6cd5 1 \u7684\u6027\u80fd\u4f18\u4e8e\u65b9\u6cd5 2\uff0c\u56e0\u4e3a\u5b83\u4f7f\u7528\u5b50\u67e5\u8be2\u5728\u968f\u673a\u8868\u4e2d\u9884\u5148\u9009\u62e9\u6709\u9650\u7684\u6570\u636e\u96c6\uff0c\u7136\u540e\u8fdb\u884c\u8fde\u63a5\u3002<\/p>\n<p>\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300a\u5982\u4f55\u6253\u4e71MySQL\u8868\u4e2d\u6309\u63d2\u5165\u987a\u5e8f\u6392\u5217\u7684\u6570\u636e\uff0c\u4f7f\u5176\u968f\u673a\u6392\u5e8f\uff1f\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u5427\uff01<\/p>\n<dl>\n<dt>\n 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