{"id":200214,"date":"2025-05-06T11:55:23","date_gmt":"2025-05-06T03:55:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200214\/"},"modified":"2025-05-06T11:55:23","modified_gmt":"2025-05-06T03:55:23","slug":"%e5%a6%82%e4%bd%95%e9%ab%98%e6%95%88%e5%9c%b0%e5%af%b9%e5%a4%a7%e5%9e%8b-mysql-%e8%a1%a8%e6%95%b0%e6%8d%ae%e8%bf%9b%e8%a1%8c%e9%9a%8f%e6%9c%ba%e6%8e%92%e5%ba%8f%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200214\/","title":{"rendered":"\u5982\u4f55\u9ad8\u6548\u5730\u5bf9\u5927\u578b MySQL \u8868\u6570\u636e\u8fdb\u884c\u968f\u673a\u6392\u5e8f\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5982\u4f55\u9ad8\u6548\u5730\u5bf9\u5927\u578b MySQL \u8868\u6570\u636e\u8fdb\u884c\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\u9ad8\u6548\u5730\u5bf9\u5927\u578b MySQL \u8868\u6570\u636e\u8fdb\u884c\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\/20241028\/1730116853671f7cf56a859.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u968f\u673a\u6253\u4e71 mysql \u8868\u7684\u6570\u636e<\/strong><\/p>\n<p>\u5bf9\u4e8e\u5927\u578b\u6570\u636e\u96c6\uff0c\u5bf9\u8868\u4e2d\u7684\u6570\u636e\u8fdb\u884c\u6309\u63d2\u5165\u987a\u5e8f\u6392\u5e8f\u975e\u5e38\u4f4e\u6548\u3002\u5982\u679c\u60a8\u5e0c\u671b\u91cd\u65b0\u6392\u5217\u8868\u4e2d\u7684\u6570\u636e\u4ee5\u4fbf\u968f\u673a\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a\u5b50\u67e5\u8be2<\/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\uff1a\u5e38\u89c4\u5199\u6cd5<\/strong><\/p>\n<pre>SELECT * FROM student WHERE totalScore BETWEEN 5 AND 100 ORDER BY RAND() LIMIT 100;<\/pre>\n<p>\u65b9\u6cd5 1 \u4f7f\u7528\u5b50\u67e5\u8be2\u6765\u4ece\u8868\u4e2d\u9009\u62e9\u4e00\u4e2a\u968f\u673a\u6392\u5e8f\u7684 id \u5217\u8868\uff0c\u7136\u540e\u5c06\u5176\u4e0e\u4e3b\u8868\u8fdb\u884c\u8054\u63a5\u3002\u8fd9\u79cd\u65b9\u6cd5\u6027\u80fd\u66f4\u597d\u3002<\/p>\n<p>\u65b9\u6cd5 2 \u662f mysql \u7684\u5e38\u89c4\u5199\u6cd5\u3002\u867d\u7136\u5b83\u66f4\u5bb9\u6613\u7406\u89e3\uff0c\u4f46\u5f53\u6570\u636e\u96c6\u8f83\u5927\u65f6\u6027\u80fd\u4f1a\u4e0b\u964d\u3002<\/p>\n<p>\u8bf7\u6ce8\u610f\uff0crand() \u51fd\u6570\u4f1a\u751f\u6210\u4e00\u4e2a\u4f2a\u968f\u673a\u6570\uff0c\u56e0\u6b64\u7ed3\u679c\u4e0d\u4f1a\u771f\u6b63\u968f\u673a\u3002\u5982\u679c\u9700\u8981\u771f\u6b63\u7684\u968f\u673a\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528\u8bf8\u5982 uuid \u4e4b\u7c7b\u7684\u503c\u3002<\/p>\n<p>\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300a\u5982\u4f55\u9ad8\u6548\u5730\u5bf9\u5927\u578b MySQL \u8868\u6570\u636e\u8fdb\u884c\u968f\u673a\u6392\u5e8f\uff1f\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6570\u636e\u5e93\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u9ad8\u6548\u5730\u5bf9\u5927\u578b MySQL 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