{"id":76140,"date":"2024-10-16T04:11:16","date_gmt":"2024-10-15T20:11:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76140\/"},"modified":"2024-10-16T04:11:17","modified_gmt":"2024-10-15T20:11:17","slug":"mysql%e6%8e%92%e5%ba%8f%e4%bd%bf%e7%94%a8%e6%83%85%e6%b3%81","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76140\/","title":{"rendered":"MySQL\u6392\u5e8f\u4f7f\u7528\u60c5\u6cc1"},"content":{"rendered":"<h1 id=\"mysql%e6%8e%92%e5%ba%8f%e4%bd%bf%e7%94%a8%e6%83%85%e6%b3%81-SUVKTQyBek\">MySQL\u6392\u5e8f\u4f7f\u7528\u60c5\u6cc1<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u6392\u5e8f\u662f\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u64cd\u4f5c\uff0c\u5c24\u5176\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6392\u5e8f\u529f\u80fd\uff0c\u5e6b\u52a9\u7528\u6236\u6709\u6548\u5730\u7ba1\u7406\u548c\u6aa2\u7d22\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0eMySQL\u7684\u6392\u5e8f\u4f7f\u7528\u60c5\u6cc1\uff0c\u5305\u62ec\u5176\u57fa\u672c\u8a9e\u6cd5\u3001\u6027\u80fd\u8003\u91cf\u53ca\u5be6\u969b\u61c9\u7528\u6848\u4f8b\u3002<\/p>\n<h2 id=\"mysql%e6%8e%92%e5%ba%8f%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-SUVKTQyBek\">MySQL\u6392\u5e8f\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u6392\u5e8f\u4e3b\u8981\u662f\u901a\u904e\u4f7f\u7528<strong>ORDER BY<\/strong>\u5b50\u53e5\u4f86\u5be6\u73fe\u7684\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>SELECT column1, column2, ...\nFROM table_name\nORDER BY column1 [ASC|DESC], column2 [ASC|DESC], ...;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<strong>ASC<\/strong>\u8868\u793a\u5347\u5e8f\uff08\u9ed8\u8a8d\uff09\uff0c\u800c<strong>DESC<\/strong>\u8868\u793a\u964d\u5e8f\u3002\u7528\u6236\u53ef\u4ee5\u6839\u64da\u9700\u8981\u9078\u64c7\u6392\u5e8f\u7684\u5217\u548c\u6392\u5e8f\u65b9\u5f0f\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b-SUVKTQyBek\">\u793a\u4f8b<\/h3>\n<p>\u5047\u8a2d\u6709\u4e00\u500b\u540d\u70ba<strong>employees<\/strong>\u7684\u8868\uff0c\u5305\u542b\u54e1\u5de5\u7684\u59d3\u540d\u548c\u85aa\u6c34\u3002\u82e5\u8981\u6839\u64da\u85aa\u6c34\u9032\u884c\u964d\u5e8f\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT name, salary\nFROM employees\nORDER BY salary DESC;<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u54e1\u5de5\u7684\u59d3\u540d\u548c\u85aa\u6c34\uff0c\u4e26\u6309\u7167\u85aa\u6c34\u5f9e\u9ad8\u5230\u4f4e\u7684\u9806\u5e8f\u6392\u5217\u3002<\/p>\n<h2 id=\"%e6%80%a7%e8%83%bd%e8%80%83%e9%87%8f-SUVKTQyBek\">\u6027\u80fd\u8003\u91cf<\/h2>\n<p>\u5728\u4f7f\u7528\u6392\u5e8f\u529f\u80fd\u6642\uff0c\u6027\u80fd\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\u56e0\u7d20\u3002\u7576\u6578\u64da\u91cf\u589e\u5927\u6642\uff0c\u6392\u5e8f\u64cd\u4f5c\u53ef\u80fd\u6703\u8b8a\u5f97\u975e\u5e38\u8017\u6642\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5f71\u97ffMySQL\u6392\u5e8f\u6027\u80fd\u7684\u56e0\u7d20\uff1a<\/p>\n<ul>\n<li><strong>\u7d22\u5f15\u7684\u4f7f\u7528\uff1a<\/strong>\u5982\u679c\u6392\u5e8f\u7684\u5217\u4e0a\u6709\u7d22\u5f15\uff0cMySQL\u53ef\u4ee5\u66f4\u5feb\u5730\u57f7\u884c\u6392\u5e8f\u64cd\u4f5c\u3002\u5efa\u8b70\u5728\u7d93\u5e38\u7528\u65bc\u6392\u5e8f\u7684\u5217\u4e0a\u5275\u5efa\u7d22\u5f15\u3002<\/li>\n<li><strong>\u6578\u64da\u91cf\uff1a<\/strong>\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u52a0\uff0c\u6392\u5e8f\u6240\u9700\u7684\u6642\u9593\u4e5f\u6703\u589e\u52a0\u3002\u5c0d\u65bc\u975e\u5e38\u5927\u7684\u6578\u64da\u96c6\uff0c\u8003\u616e\u4f7f\u7528\u5206\u9801\u67e5\u8a62\u4f86\u6e1b\u5c11\u6bcf\u6b21\u67e5\u8a62\u7684\u6578\u64da\u91cf\u3002<\/li>\n<li><strong>\u5167\u5b58\u9650\u5236\uff1a<\/strong>MySQL\u5728\u9032\u884c\u6392\u5e8f\u6642\u6703\u4f7f\u7528\u5167\u5b58\uff0c\u5982\u679c\u6578\u64da\u96c6\u8d85\u904e\u4e86\u5167\u5b58\u9650\u5236\uff0c\u5247\u6703\u4f7f\u7528\u78c1\u789f\u9032\u884c\u6392\u5e8f\uff0c\u9019\u6703\u986f\u8457\u964d\u4f4e\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h3 id=\"%e5%84%aa%e5%8c%96%e6%8e%92%e5%ba%8f%e6%9f%a5%e8%a9%a2-SUVKTQyBek\">\u512a\u5316\u6392\u5e8f\u67e5\u8a62<\/h3>\n<p>\u70ba\u4e86\u63d0\u9ad8\u6392\u5e8f\u67e5\u8a62\u7684\u6027\u80fd\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u500b\u512a\u5316\u7b56\u7565\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u7d22\u5f15\uff1a\u78ba\u4fdd\u5c0d\u6392\u5e8f\u5217\u5efa\u7acb\u7d22\u5f15\u3002<\/li>\n<li>\u9650\u5236\u8fd4\u56de\u7684\u884c\u6578\uff1a\u4f7f\u7528<strong>LIMIT<\/strong>\u5b50\u53e5\u4f86\u9650\u5236\u8fd4\u56de\u7684\u884c\u6578\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u6392\u5e8f\u7684\u6578\u64da\u91cf\u3002<\/li>\n<li>\u907f\u514d\u4f7f\u7528<strong>SELECT *<\/strong>\uff1a\u53ea\u9078\u64c7\u9700\u8981\u7684\u5217\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u7684\u50b3\u8f38\u91cf\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e6%a1%88%e4%be%8b-SUVKTQyBek\">\u5be6\u969b\u61c9\u7528\u6848\u4f8b<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0cMySQL\u7684\u6392\u5e8f\u529f\u80fd\u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u3002\u4f8b\u5982\uff0c\u5728\u96fb\u5b50\u5546\u52d9\u7db2\u7ad9\u4e2d\uff0c\u5546\u54c1\u5217\u8868\u901a\u5e38\u9700\u8981\u6839\u64da\u50f9\u683c\u3001\u8a55\u5206\u6216\u4e0a\u67b6\u6642\u9593\u9032\u884c\u6392\u5e8f\uff0c\u4ee5\u4fbf\u7528\u6236\u80fd\u5920\u5feb\u901f\u627e\u5230\u6240\u9700\u7684\u5546\u54c1\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u6839\u64da\u5546\u54c1\u50f9\u683c\u548c\u8a55\u5206\u9032\u884c\u6392\u5e8f\uff1a<\/p>\n<pre><code>SELECT product_name, price, rating\nFROM products\nORDER BY price ASC, rating DESC;<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u67e5\u8a62\u5c07\u9996\u5148\u6839\u64da\u50f9\u683c\u9032\u884c\u5347\u5e8f\u6392\u5e8f\uff0c\u7136\u5f8c\u5728\u50f9\u683c\u76f8\u540c\u7684\u60c5\u6cc1\u4e0b\u6839\u64da\u8a55\u5206\u9032\u884c\u964d\u5e8f\u6392\u5e8f\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-SUVKTQyBek\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u7684\u6392\u5e8f\u529f\u80fd\u5728\u6578\u64da\u6aa2\u7d22\u4e2d\u626e\u6f14\u8457\u91cd\u8981\u89d2\u8272\uff0c\u6b63\u78ba\u4f7f\u7528\u6392\u5e8f\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u67e5\u8a62\u7684\u6548\u7387\u3002\u901a\u904e\u5408\u7406\u7684\u7d22\u5f15\u8a2d\u8a08\u548c\u67e5\u8a62\u512a\u5316\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u5347\u6392\u5e8f\u64cd\u4f5c\u7684\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\u5834\u666f\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u670d\u52d9\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u9700\u6c42\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u548c\u64f4\u5c55\u60a8\u7684\u6578\u64da\u5eab\u61c9\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u6392\u5e8f\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u5305\u62ec\u5e38\u898b\u6392\u5e8f\u65b9\u6cd5\u3001\u6027\u80fd\u5f71\u97ff\u53ca\u6700\u4f73\u5be6\u8e10\uff0c\u63d0\u5347\u6578\u64da\u67e5\u8a62\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-76140","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76140","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=76140"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76140\/revisions"}],"predecessor-version":[{"id":76141,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76140\/revisions\/76141"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76140"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76140"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76140"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}