{"id":193885,"date":"2024-11-13T01:58:22","date_gmt":"2024-11-12T17:58:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/193885\/"},"modified":"2024-11-13T01:58:23","modified_gmt":"2024-11-12T17:58:23","slug":"%e4%b8%80%e6%ad%a5%e6%ad%a5%ef%bc%8c%e7%84%a1%e9%81%ba%e6%bc%8f%ef%bc%9a%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e6%8c%89%e9%a0%86%e5%ba%8f%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/193885\/","title":{"rendered":"\u4e00\u6b65\u6b65\uff0c\u7121\u907a\u6f0f\uff1a\u6578\u64da\u5eab\u67e5\u8a62\u6309\u9806\u5e8f\uff08\u6578\u64da\u5eab\u67e5\u8a62\u6309\u9806\u5e8f\uff09"},"content":{"rendered":"<h1 id=\"%e4%b8%80%e6%ad%a5%e6%ad%a5%ef%bc%8c%e7%84%a1%e9%81%ba%e6%bc%8f%ef%bc%9a%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e6%8c%89%e9%a0%86%e5%ba%8f-gSuTWrTBPi\">\u4e00\u6b65\u6b65\uff0c\u7121\u907a\u6f0f\uff1a\u6578\u64da\u5eab\u67e5\u8a62\u6309\u9806\u5e8f<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u67e5\u8a62\u7684\u6548\u7387\u548c\u6e96\u78ba\u6027\u5c0d\u65bc\u4f01\u696d\u7684\u904b\u71df\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u4f01\u696d\u9084\u662f\u5927\u578b\u4f01\u696d\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u67e5\u8a62\u90fd\u662f\u65e5\u5e38\u904b\u4f5c\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u6578\u64da\u5eab\u67e5\u8a62\u7684\u57fa\u672c\u6982\u5ff5\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\uff0c\u4ee5\u78ba\u4fdd\u67e5\u8a62\u904e\u7a0b\u7684\u9ad8\u6548\u6027\u548c\u6e96\u78ba\u6027\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-gSuTWrTBPi\">\u6578\u64da\u5eab\u67e5\u8a62\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u6578\u64da\u5eab\u67e5\u8a62\u662f\u6307\u7528\u6236\u901a\u904e\u7279\u5b9a\u7684\u67e5\u8a62\u8a9e\u8a00\uff08\u5982SQL\uff09\u5411\u6578\u64da\u5eab\u8acb\u6c42\u6578\u64da\u7684\u904e\u7a0b\u3002\u67e5\u8a62\u53ef\u4ee5\u662f\u7c21\u55ae\u7684\u9078\u64c7\u64cd\u4f5c\uff0c\u4e5f\u53ef\u4ee5\u662f\u8907\u96dc\u7684\u591a\u8868\u806f\u63a5\u3002\u67e5\u8a62\u7684\u7d50\u679c\u901a\u5e38\u4ee5\u8868\u683c\u7684\u5f62\u5f0f\u8fd4\u56de\uff0c\u4e26\u53ef\u4ee5\u9032\u4e00\u6b65\u8655\u7406\u6216\u5206\u6790\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e8%a9%a2%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%b5%90%e6%a7%8b-gSuTWrTBPi\">\u67e5\u8a62\u7684\u57fa\u672c\u7d50\u69cb<\/h2>\n<p>\u5728SQL\u4e2d\uff0c\u67e5\u8a62\u7684\u57fa\u672c\u7d50\u69cb\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u90e8\u5206\uff1a<\/p>\n<ul>\n<li><strong>SELECT<\/strong>\uff1a\u6307\u5b9a\u8981\u6aa2\u7d22\u7684\u5217\u3002<\/li>\n<li><strong>FROM<\/strong>\uff1a\u6307\u5b9a\u8981\u67e5\u8a62\u7684\u8868\u3002<\/li>\n<li><strong>WHERE<\/strong>\uff1a\u6307\u5b9a\u67e5\u8a62\u7684\u689d\u4ef6\u3002<\/li>\n<li><strong>ORDER BY<\/strong>\uff1a\u6307\u5b9a\u7d50\u679c\u7684\u6392\u5e8f\u65b9\u5f0f\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT name, age \nFROM users \nWHERE age &gt; 18 \nORDER BY age ASC;<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u5f9e\u540d\u70ba\u201cusers\u201d\u7684\u8868\u4e2d\u9078\u64c7\u6240\u6709\u5e74\u9f61\u5927\u65bc18\u6b72\u7684\u7528\u6236\uff0c\u4e26\u6309\u5e74\u9f61\u5347\u5e8f\u6392\u5217\u7d50\u679c\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e8%a9%a2%e6%8c%89%e9%a0%86%e5%ba%8f%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-gSuTWrTBPi\">\u67e5\u8a62\u6309\u9806\u5e8f\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u5728\u9032\u884c\u6578\u64da\u5eab\u67e5\u8a62\u6642\uff0c\u6309\u9806\u5e8f\u57f7\u884c\u67e5\u8a62\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u9019\u4e0d\u50c5\u6709\u52a9\u65bc\u63d0\u9ad8\u67e5\u8a62\u7684\u6548\u7387\uff0c\u9084\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u6e96\u78ba\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u63d0\u9ad8\u6027\u80fd<\/strong>\uff1a\u901a\u904e\u5408\u7406\u7684\u67e5\u8a62\u9806\u5e8f\uff0c\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u8ca0\u64d4\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u7684\u901f\u5ea6\u3002<\/li>\n<li><strong>\u6e1b\u5c11\u932f\u8aa4<\/strong>\uff1a\u6309\u9806\u5e8f\u57f7\u884c\u67e5\u8a62\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u5bb9\u6613\u5730\u8b58\u5225\u548c\u4fee\u6b63\u932f\u8aa4\u3002<\/li>\n<li><strong>\u589e\u5f37\u53ef\u8b80\u6027<\/strong>\uff1a\u6e05\u6670\u7684\u67e5\u8a62\u7d50\u69cb\u4f7f\u5f97\u5176\u4ed6\u958b\u767c\u8005\u80fd\u5920\u66f4\u5bb9\u6613\u7406\u89e3\u67e5\u8a62\u7684\u610f\u5716\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-gSuTWrTBPi\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u70ba\u4e86\u78ba\u4fdd\u6578\u64da\u5eab\u67e5\u8a62\u7684\u9ad8\u6548\u6027\u548c\u6e96\u78ba\u6027\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u7d22\u5f15<\/strong>\uff1a\u70ba\u7d93\u5e38\u67e5\u8a62\u7684\u5217\u5275\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002<\/li>\n<li><strong>\u907f\u514dSELECT *<\/strong>\uff1a\u660e\u78ba\u6307\u5b9a\u9700\u8981\u7684\u5217\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u201cSELECT *\u201d\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u50b3\u8f38\u3002<\/li>\n<li><strong>\u4f7f\u7528JOIN\u800c\u975e\u5b50\u67e5\u8a62<\/strong>\uff1a\u5728\u53ef\u80fd\u7684\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528JOIN\u4f86\u9023\u63a5\u8868\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u5b50\u67e5\u8a62\uff0c\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<li><strong>\u5b9a\u671f\u512a\u5316\u6578\u64da\u5eab<\/strong>\uff1a\u5b9a\u671f\u9032\u884c\u6578\u64da\u5eab\u7684\u512a\u5316\u548c\u7dad\u8b77\uff0c\u4ee5\u78ba\u4fdd\u5176\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-gSuTWrTBPi\">\u7d50\u8ad6<\/h2>\n<p>\u6578\u64da\u5eab\u67e5\u8a62\u662f\u6578\u64da\u7ba1\u7406\u4e2d\u81f3\u95dc\u91cd\u8981\u7684\u4e00\u74b0\uff0c\u6309\u9806\u5e8f\u57f7\u884c\u67e5\u8a62\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6548\u7387\uff0c\u9084\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u6e96\u78ba\u6027\u3002\u901a\u904e\u9075\u5faa\u6700\u4f73\u5be6\u8e10\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\uff0c\u4e26\u70ba\u7528\u6236\u63d0\u4f9b\u66f4\u597d\u7684\u670d\u52d9\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\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u4e00\u6b65\u6b65\u7684\u6578\u64da\u5eab\u67e5\u8a62\u6309\u9806\u5e8f\uff0c\u78ba\u4fdd\u6bcf\u500b\u6b65\u9a5f\u7121\u907a\u6f0f\uff0c\u63d0\u5347\u67e5\u8a62\u6548\u7387\u8207\u6e96\u78ba\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-193885","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193885","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=193885"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193885\/revisions"}],"predecessor-version":[{"id":193886,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193885\/revisions\/193886"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=193885"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=193885"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=193885"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}