{"id":186414,"date":"2024-11-11T05:43:18","date_gmt":"2024-11-10T21:43:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/186414\/"},"modified":"2024-11-11T05:43:19","modified_gmt":"2024-11-10T21:43:19","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%80%a7%e8%83%bd%e8%aa%bf%e5%84%aa%e5%92%8c%e5%84%aa%e5%8c%96","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/186414\/","title":{"rendered":"\u6578\u64da\u5eab\u7684\u6027\u80fd\u8abf\u512a\u548c\u512a\u5316"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%80%a7%e8%83%bd%e8%aa%bf%e5%84%aa%e5%92%8c%e5%84%aa%e5%8c%96-tuMPmMGGlp\">\u6578\u64da\u5eab\u7684\u6027\u80fd\u8abf\u512a\u548c\u512a\u5316<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u4f01\u696d\u7684\u6210\u529f\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u3001\u793e\u4ea4\u5a92\u9ad4\u9084\u662f\u4f01\u696d\u5167\u90e8\u7cfb\u7d71\uff0c\u6578\u64da\u5eab\u7684\u6548\u7387\u548c\u97ff\u61c9\u901f\u5ea6\u90fd\u76f4\u63a5\u5f71\u97ff\u7528\u6236\u9ad4\u9a57\u548c\u696d\u52d9\u904b\u71df\u3002\u56e0\u6b64\uff0c\u9032\u884c\u6578\u64da\u5eab\u7684\u6027\u80fd\u8abf\u512a\u548c\u512a\u5316\u662f\u6bcf\u500b\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u5fc5\u9808\u638c\u63e1\u7684\u6280\u80fd\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd%e8%aa%bf%e5%84%aa%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-tuMPmMGGlp\">\u6578\u64da\u5eab\u6027\u80fd\u8abf\u512a\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u6578\u64da\u5eab\u6027\u80fd\u8abf\u512a\u662f\u6307\u901a\u904e\u5404\u7a2e\u6280\u8853\u624b\u6bb5\u4f86\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u57f7\u884c\u6548\u7387\u548c\u97ff\u61c9\u901f\u5ea6\u3002\u9019\u5305\u62ec\u67e5\u8a62\u512a\u5316\u3001\u7d22\u5f15\u7ba1\u7406\u3001\u786c\u9ad4\u914d\u7f6e\u8abf\u6574\u7b49\u591a\u500b\u65b9\u9762\u3002\u6027\u80fd\u8abf\u512a\u7684\u76ee\u6a19\u662f\u78ba\u4fdd\u6578\u64da\u5eab\u80fd\u5920\u5728\u9ad8\u8ca0\u8f09\u7684\u60c5\u6cc1\u4e0b\u4ecd\u7136\u4fdd\u6301\u7a69\u5b9a\u7684\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96-tuMPmMGGlp\">\u67e5\u8a62\u512a\u5316<\/h2>\n<p>\u67e5\u8a62\u512a\u5316\u662f\u6578\u64da\u5eab\u6027\u80fd\u8abf\u512a\u4e2d\u6700\u91cd\u8981\u7684\u4e00\u74b0\u3002\u901a\u904e\u5206\u6790\u548c\u6539\u5bebSQL\u67e5\u8a62\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u6aa2\u7d22\u7684\u901f\u5ea6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u67e5\u8a62\u512a\u5316\u6280\u5de7\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u7d22\u5f15\uff1a<\/strong>\u7d22\u5f15\u53ef\u4ee5\u52a0\u901f\u67e5\u8a62\u7684\u901f\u5ea6\uff0c\u7279\u5225\u662f\u5728\u5927\u578b\u6578\u64da\u96c6\u4e0a\u3002\u78ba\u4fdd\u5c0d\u7d93\u5e38\u67e5\u8a62\u7684\u5217\u5efa\u7acb\u7d22\u5f15\u3002<\/li>\n<li><strong>\u907f\u514dSELECT *\uff1a<\/strong>\u4f7f\u7528\u5177\u9ad4\u7684\u5217\u540d\u800c\u4e0d\u662fSELECT *\uff0c\u53ef\u4ee5\u6e1b\u5c11\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u50b3\u8f38\u3002<\/li>\n<li><strong>\u4f7f\u7528JOIN\u800c\u975e\u5b50\u67e5\u8a62\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528JOIN\u53ef\u4ee5\u6bd4\u5b50\u67e5\u8a62\u66f4\u9ad8\u6548\u3002<\/li>\n<\/ul>\n<pre><code>SELECT name, age FROM users WHERE age &gt; 18;<\/code><\/pre>\n<h2 id=\"%e7%b4%a2%e5%bc%95%e7%ae%a1%e7%90%86-tuMPmMGGlp\">\u7d22\u5f15\u7ba1\u7406<\/h2>\n<p>\u7d22\u5f15\u662f\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u7684\u95dc\u9375\uff0c\u4f46\u904e\u591a\u6216\u4e0d\u7576\u7684\u7d22\u5f15\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u7d22\u5f15\u7ba1\u7406\u7684\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u5b9a\u671f\u6aa2\u67e5\u7d22\u5f15\uff1a<\/strong>\u4f7f\u7528\u6578\u64da\u5eab\u63d0\u4f9b\u7684\u5de5\u5177\u4f86\u6aa2\u67e5\u7d22\u5f15\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u522a\u9664\u4e0d\u518d\u4f7f\u7528\u7684\u7d22\u5f15\u3002<\/li>\n<li><strong>\u9078\u64c7\u5408\u9069\u7684\u7d22\u5f15\u985e\u578b\uff1a<\/strong>\u6839\u64da\u67e5\u8a62\u7684\u7279\u6027\u9078\u64c7\u5408\u9069\u7684\u7d22\u5f15\u985e\u578b\uff0c\u5982B\u6a39\u7d22\u5f15\u3001\u54c8\u5e0c\u7d22\u5f15\u7b49\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%a1%ac%e9%ab%94%e9%85%8d%e7%bd%ae%e8%aa%bf%e6%95%b4-tuMPmMGGlp\">\u786c\u9ad4\u914d\u7f6e\u8abf\u6574<\/h2>\n<p>\u6578\u64da\u5eab\u7684\u6027\u80fd\u4e5f\u53d7\u5230\u786c\u9ad4\u914d\u7f6e\u7684\u5f71\u97ff\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u786c\u9ad4\u8abf\u6574\u7684\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u589e\u52a0\u5167\u5b58\uff1a<\/strong>\u5167\u5b58\u7684\u589e\u52a0\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u7de9\u5b58\u80fd\u529b\uff0c\u6e1b\u5c11\u78c1\u789fI\/O\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u4f7f\u7528SSD\uff1a<\/strong>\u56fa\u614b\u786c\u789f\uff08SSD\uff09\u6bd4\u50b3\u7d71\u786c\u789f\uff08HDD\uff09\u5177\u6709\u66f4\u5feb\u7684\u8b80\u5beb\u901f\u5ea6\uff0c\u80fd\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%9b%a3%e6%8e%a7%e5%92%8c%e8%aa%bf%e6%95%b4-tuMPmMGGlp\">\u76e3\u63a7\u548c\u8abf\u6574<\/h2>\n<p>\u6301\u7e8c\u7684\u76e3\u63a7\u662f\u78ba\u4fdd\u6578\u64da\u5eab\u6027\u80fd\u7684\u95dc\u9375\u3002\u4f7f\u7528\u6027\u80fd\u76e3\u63a7\u5de5\u5177\u53ef\u4ee5\u5e6b\u52a9\u8b58\u5225\u74f6\u9838\u548c\u6f5b\u5728\u554f\u984c\u3002\u6839\u64da\u76e3\u63a7\u6578\u64da\uff0c\u5b9a\u671f\u9032\u884c\u8abf\u6574\u548c\u512a\u5316\uff0c\u4ee5\u4fdd\u6301\u6578\u64da\u5eab\u7684\u6700\u4f73\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-tuMPmMGGlp\">\u7d50\u8ad6<\/h2>\n<p>\u6578\u64da\u5eab\u7684\u6027\u80fd\u8abf\u512a\u548c\u512a\u5316\u662f\u4e00\u500b\u6301\u7e8c\u7684\u904e\u7a0b\uff0c\u6d89\u53ca\u591a\u500b\u65b9\u9762\u7684\u6280\u8853\u548c\u7b56\u7565\u3002\u901a\u904e\u67e5\u8a62\u512a\u5316\u3001\u7d22\u5f15\u7ba1\u7406\u3001\u786c\u9ad4\u914d\u7f6e\u8abf\u6574\u4ee5\u53ca\u6301\u7e8c\u7684\u76e3\u63a7\uff0c\u4f01\u696d\u53ef\u4ee5\u78ba\u4fdd\u5176\u6578\u64da\u5eab\u5728\u9ad8\u8ca0\u8f09\u4e0b\u4ecd\u7136\u80fd\u5920\u9ad8\u6548\u904b\u884c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684\u670d\u52d9\u63d0\u4f9b\u5546\u81f3\u95dc\u91cd\u8981\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c\u6578\u64da\u5eab\u6027\u80fd\u512a\u5316\u7684\u8cc7\u8a0a\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u696d\u52d9\u7684\u6574\u9ad4\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u6578\u64da\u5eab\u6027\u80fd\u8abf\u512a\u548c\u512a\u5316\u7684\u6700\u4f73\u5be6\u8e10\uff0c\u63d0\u5347\u67e5\u8a62\u901f\u5ea6\u548c\u7cfb\u7d71\u6548\u7387\uff0c\u78ba\u4fdd\u6578\u64da\u8655\u7406\u7684\u9ad8\u6548\u6027\u548c\u7a69\u5b9a\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-186414","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186414","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=186414"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186414\/revisions"}],"predecessor-version":[{"id":186415,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186414\/revisions\/186415"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=186414"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=186414"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=186414"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}