{"id":186940,"date":"2024-11-11T10:06:22","date_gmt":"2024-11-11T02:06:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/186940\/"},"modified":"2024-11-11T10:06:24","modified_gmt":"2024-11-11T02:06:24","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8e%92%e5%ba%8f%e6%8a%80%e5%b7%a7%ef%bc%9a%e6%8f%90%e9%ab%98%e6%95%b8%e6%93%9a%e6%9f%a5%e8%a9%a2%e6%95%88%e7%8e%87-%e5%a6%82%e4%bd%95%e5%b0%87%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/186940\/","title":{"rendered":"\u6578\u64da\u5eab\u6392\u5e8f\u6280\u5de7\uff1a\u63d0\u9ad8\u6578\u64da\u67e5\u8a62\u6548\u7387 (\u5982\u4f55\u5c07\u6578\u64da\u5eab\u4e2d\u6578\u64da\u6392\u5e8f)"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8e%92%e5%ba%8f%e6%8a%80%e5%b7%a7%ef%bc%9a%e6%8f%90%e9%ab%98%e6%95%b8%e6%93%9a%e6%9f%a5%e8%a9%a2%e6%95%88%e7%8e%87-PZMODMBKyV\">\u6578\u64da\u5eab\u6392\u5e8f\u6280\u5de7\uff1a\u63d0\u9ad8\u6578\u64da\u67e5\u8a62\u6548\u7387<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u6574\u9ad4\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002\u6578\u64da\u5eab\u6392\u5e8f\u662f\u63d0\u9ad8\u6578\u64da\u67e5\u8a62\u6548\u7387\u7684\u4e00\u500b\u91cd\u8981\u65b9\u9762\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6578\u64da\u5eab\u6392\u5e8f\u7684\u57fa\u672c\u6982\u5ff5\u3001\u5e38\u898b\u7684\u6392\u5e8f\u65b9\u6cd5\u4ee5\u53ca\u5982\u4f55\u6709\u6548\u5730\u5be6\u65bd\u9019\u4e9b\u65b9\u6cd5\u4f86\u512a\u5316\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8e%92%e5%ba%8f%ef%bc%9f-PZMODMBKyV\">\u4ec0\u9ebc\u662f\u6578\u64da\u5eab\u6392\u5e8f\uff1f<\/h2>\n<p>\u6578\u64da\u5eab\u6392\u5e8f\u662f\u6307\u5c07\u67e5\u8a62\u7d50\u679c\u6309\u7167\u7279\u5b9a\u7684\u5217\u6216\u591a\u5217\u9032\u884c\u6392\u5217\u7684\u904e\u7a0b\u3002\u6392\u5e8f\u53ef\u4ee5\u662f\u5347\u5e8f\u6216\u964d\u5e8f\uff0c\u901a\u5e38\u7528\u65bc\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u8b80\u6027\u548c\u67e5\u8a62\u7684\u6548\u7387\u3002\u6392\u5e8f\u64cd\u4f5c\u901a\u5e38\u5728 SQL \u67e5\u8a62\u4e2d\u4f7f\u7528 <code>ORDER BY<\/code> \u5b50\u53e5\u4f86\u5be6\u73fe\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e6%8e%92%e5%ba%8f%e5%b0%8d%e6%9f%a5%e8%a9%a2%e6%95%88%e7%8e%87%e9%87%8d%e8%a6%81%ef%bc%9f-PZMODMBKyV\">\u70ba\u4ec0\u9ebc\u6392\u5e8f\u5c0d\u67e5\u8a62\u6548\u7387\u91cd\u8981\uff1f<\/h2>\n<p>\u6392\u5e8f\u5c0d\u65bc\u67e5\u8a62\u6548\u7387\u7684\u91cd\u8981\u6027\u4e3b\u8981\u9ad4\u73fe\u5728\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u63d0\u9ad8\u53ef\u8b80\u6027\uff1a<\/strong>\u6392\u5e8f\u53ef\u4ee5\u4f7f\u67e5\u8a62\u7d50\u679c\u66f4\u6613\u65bc\u7406\u89e3\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002<\/li>\n<li><strong>\u52a0\u901f\u67e5\u8a62\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6392\u5e8f\u53ef\u4ee5\u5e6b\u52a9\u6578\u64da\u5eab\u5f15\u64ce\u66f4\u5feb\u5730\u627e\u5230\u6240\u9700\u7684\u6578\u64da\uff0c\u7279\u5225\u662f\u7576\u6578\u64da\u5df2\u7d93\u6309\u67d0\u7a2e\u65b9\u5f0f\u6392\u5217\u6642\u3002<\/li>\n<li><strong>\u652f\u6301\u805a\u5408\u64cd\u4f5c\uff1a<\/strong>\u8a31\u591a\u805a\u5408\u51fd\u6578\uff08\u5982 <code>GROUP BY<\/code>\uff09\u9700\u8981\u6578\u64da\u5148\u9032\u884c\u6392\u5e8f\uff0c\u4ee5\u4fbf\u6b63\u78ba\u8a08\u7b97\u7d50\u679c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84%e6%8e%92%e5%ba%8f%e6%96%b9%e6%b3%95-PZMODMBKyV\">\u5e38\u898b\u7684\u6392\u5e8f\u65b9\u6cd5<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u6709\u5e7e\u7a2e\u5e38\u898b\u7684\u6392\u5e8f\u65b9\u6cd5\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4e3b\u8981\u7684\u6392\u5e8f\u6280\u8853\uff1a<\/p>\n<h3 id=\"1-%e5%9f%ba%e6%96%bc%e7%b4%a2%e5%bc%95%e7%9a%84%e6%8e%92%e5%ba%8f-PZMODMBKyV\">1. \u57fa\u65bc\u7d22\u5f15\u7684\u6392\u5e8f<\/h3>\n<p>\u4f7f\u7528\u7d22\u5f15\u9032\u884c\u6392\u5e8f\u662f\u6700\u6709\u6548\u7684\u65b9\u6cd5\u4e4b\u4e00\u3002\u7576\u6578\u64da\u5eab\u8868\u4e2d\u5b58\u5728\u7d22\u5f15\u6642\uff0c\u6578\u64da\u5eab\u53ef\u4ee5\u5229\u7528\u9019\u4e9b\u7d22\u5f15\u4f86\u5feb\u901f\u6aa2\u7d22\u548c\u6392\u5e8f\u6578\u64da\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u4e00\u500b\u5305\u542b\u7528\u6236\u4fe1\u606f\u7684\u8868\uff0c\u5982\u679c\u5c0d\u7528\u6236\u540d\u5217\u5efa\u7acb\u4e86\u7d22\u5f15\uff0c\u5247\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b SQL \u67e5\u8a62\u5feb\u901f\u7372\u53d6\u6392\u5e8f\u7d50\u679c\uff1a<\/p>\n<pre><code>SELECT * FROM users ORDER BY username ASC;<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e5%85%a7%e5%ad%98%e6%8e%92%e5%ba%8f-PZMODMBKyV\">2. \u4f7f\u7528\u5167\u5b58\u6392\u5e8f<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u5eab\u53ef\u80fd\u6703\u5c07\u6578\u64da\u52a0\u8f09\u5230\u5167\u5b58\u4e2d\u9032\u884c\u6392\u5e8f\u3002\u9019\u7a2e\u65b9\u6cd5\u9069\u7528\u65bc\u5c0f\u578b\u6578\u64da\u96c6\uff0c\u4f46\u5c0d\u65bc\u5927\u578b\u6578\u64da\u96c6\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u4f7f\u7528 <code>LIMIT<\/code> \u5b50\u53e5\u53ef\u4ee5\u9650\u5236\u8fd4\u56de\u7684\u884c\u6578\uff0c\u5f9e\u800c\u6e1b\u5c11\u5167\u5b58\u4f7f\u7528\uff1a<\/p>\n<pre><code>SELECT * FROM users ORDER BY created_at DESC LIMIT 10;<\/code><\/pre>\n<h3 id=\"3-%e5%a4%96%e9%83%a8%e6%8e%92%e5%ba%8f-PZMODMBKyV\">3. \u5916\u90e8\u6392\u5e8f<\/h3>\n<p>\u7576\u6578\u64da\u96c6\u904e\u5927\u800c\u7121\u6cd5\u5b8c\u5168\u52a0\u8f09\u5230\u5167\u5b58\u4e2d\u6642\uff0c\u6578\u64da\u5eab\u6703\u4f7f\u7528\u5916\u90e8\u6392\u5e8f\u6280\u8853\u3002\u9019\u7a2e\u65b9\u6cd5\u901a\u5e38\u6d89\u53ca\u5c07\u6578\u64da\u5206\u6210\u591a\u500b\u90e8\u5206\uff0c\u5206\u5225\u9032\u884c\u6392\u5e8f\uff0c\u7136\u5f8c\u518d\u5408\u4f75\u7d50\u679c\u3002\u9019\u7a2e\u65b9\u6cd5\u7684\u6027\u80fd\u8f03\u4f4e\uff0c\u4f46\u5728\u8655\u7406\u5927\u6578\u64da\u96c6\u6642\u662f\u5fc5\u8981\u7684\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-PZMODMBKyV\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u70ba\u4e86\u63d0\u9ad8\u6578\u64da\u67e5\u8a62\u7684\u6548\u7387\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u7d22\u5f15\uff1a<\/strong>\u78ba\u4fdd\u5c0d\u7d93\u5e38\u7528\u65bc\u6392\u5e8f\u7684\u5217\u5efa\u7acb\u7d22\u5f15\u3002<\/li>\n<li><strong>\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6392\u5e8f\uff1a<\/strong>\u50c5\u5728\u9700\u8981\u6642\u9032\u884c\u6392\u5e8f\uff0c\u907f\u514d\u5728\u5927\u578b\u6578\u64da\u96c6\u4e0a\u9032\u884c\u4e0d\u5fc5\u8981\u7684\u6392\u5e8f\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u8003\u616e\u6578\u64da\u985e\u578b\uff1a<\/strong>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u53ef\u4ee5\u63d0\u9ad8\u6392\u5e8f\u6027\u80fd\uff0c\u4f8b\u5982\uff0c\u4f7f\u7528\u6574\u6578\u985e\u578b\u800c\u4e0d\u662f\u5b57\u7b26\u4e32\u985e\u578b\u9032\u884c\u6392\u5e8f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-PZMODMBKyV\">\u7d50\u8ad6<\/h2>\n<p>\u6578\u64da\u5eab\u6392\u5e8f\u662f\u63d0\u9ad8\u6578\u64da\u67e5\u8a62\u6548\u7387\u7684\u91cd\u8981\u6280\u8853\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528\u7d22\u5f15\u3001\u9078\u64c7\u5408\u9069\u7684\u6392\u5e8f\u65b9\u6cd5\u4ee5\u53ca\u9075\u5faa\u6700\u4f73\u5be6\u8e10\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u5347\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u4e86\u89e3\u9019\u4e9b\u6392\u5e8f\u6280\u5de7\u4e0d\u50c5\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u512a\u5316\u61c9\u7528\u7a0b\u5e8f\uff0c\u9084\u80fd\u63d0\u9ad8\u7528\u6236\u7684\u6574\u9ad4\u9ad4\u9a57\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u9700\u6c42\uff0cServer.HK 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