{"id":181852,"date":"2024-11-09T19:32:20","date_gmt":"2024-11-09T11:32:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/181852\/"},"modified":"2024-11-09T19:32:21","modified_gmt":"2024-11-09T11:32:21","slug":"%e6%b7%b1%e5%85%a5%e6%8e%a2%e7%a9%b6%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9a%e8%87%aa%e5%ba%95%e5%90%91%e4%b8%8a%e8%a7%a3%e6%9e%90%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e8%87%aa%e5%ba%95%e5%90%91%e4%b8%8a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/181852\/","title":{"rendered":"\u6df1\u5165\u63a2\u7a76\u6578\u64da\u5eab\uff1a\u81ea\u5e95\u5411\u4e0a\u89e3\u6790\uff08\u6578\u64da\u5eab\u81ea\u5e95\u5411\u4e0a\uff09"},"content":{"rendered":"<h1 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id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e7%b5%90%e6%a7%8b-SvHwkndRoQ\">\u6578\u64da\u5eab\u7684\u7d50\u69cb<\/h2>\n<p>\u6578\u64da\u5eab\u7684\u7d50\u69cb\u53ef\u4ee5\u5206\u70ba\u5e7e\u500b\u5c64\u6b21\uff0c\u5f9e\u5e95\u5c64\u7684\u7269\u7406\u5b58\u5132\u5230\u9ad8\u5c64\u7684\u61c9\u7528\u63a5\u53e3\u3002\u4ee5\u4e0b\u662f\u6578\u64da\u5eab\u7684\u4e3b\u8981\u7d50\u69cb\u5c64\u6b21\uff1a<\/p>\n<ul>\n<li><strong>\u7269\u7406\u5c64<\/strong>\uff1a\u9019\u4e00\u5c64\u6d89\u53ca\u6578\u64da\u7684\u5be6\u969b\u5b58\u5132\u65b9\u5f0f\uff0c\u5305\u62ec\u78c1\u789f\u3001SSD\u7b49\u5b58\u5132\u4ecb\u8cea\u3002\u6578\u64da\u4ee5\u4e8c\u9032\u5236\u5f62\u5f0f\u5b58\u5132\uff0c\u4e26\u4e14\u901a\u5e38\u6703\u9032\u884c\u58d3\u7e2e\u548c\u52a0\u5bc6\u3002<\/li>\n<li><strong>\u908f\u8f2f\u5c64<\/strong>\uff1a\u5728\u9019\u4e00\u5c64\uff0c\u6578\u64da\u4ee5\u8868\u683c\u7684\u5f62\u5f0f\u7d44\u7e54\uff0c\u4e26\u4e14\u5b9a\u7fa9\u4e86\u6578\u64da\u7684\u7d50\u69cb\u548c\u95dc\u4fc2\u3002\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u4f7f\u7528\u8868\u683c\u4f86\u8868\u793a\u6578\u64da\uff0c\u800c\u975e\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u5247\u4f7f\u7528\u6587\u6a94\u6216\u9375\u503c\u5c0d\u3002<\/li>\n<li><strong>\u8996\u5716\u5c64<\/strong>\uff1a\u9019\u4e00\u5c64\u63d0\u4f9b\u4e86\u7528\u6236\u8207\u6578\u64da\u5eab\u4ea4\u4e92\u7684\u63a5\u53e3\u3002\u7528\u6236\u53ef\u4ee5\u901a\u904e\u67e5\u8a62\u8a9e\u8a00\uff08\u5982 SQL\uff09\u4f86\u6aa2\u7d22\u548c\u64cd\u4f5c\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%87%aa%e5%ba%95%e5%90%91%e4%b8%8a%e7%9a%84%e8%a7%a3%e6%9e%90-SvHwkndRoQ\">\u81ea\u5e95\u5411\u4e0a\u7684\u89e3\u6790<\/h2>\n<p>\u81ea\u5e95\u5411\u4e0a\u7684\u89e3\u6790\u65b9\u6cd5\u5f37\u8abf\u5f9e\u6700\u57fa\u672c\u7684\u5c64\u6b21\u958b\u59cb\u7406\u89e3\u6578\u64da\u5eab\u7684\u904b\u4f5c\u3002\u9019\u7a2e\u65b9\u6cd5\u6709\u52a9\u65bc\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u66f4\u597d\u5730\u638c\u63e1\u6578\u64da\u5eab\u7684\u6027\u80fd\u512a\u5316\u548c\u6545\u969c\u6392\u9664\u3002<\/p>\n<h3 id=\"%e7%89%a9%e7%90%86%e5%b1%a4%e7%9a%84%e8%a7%a3%e6%9e%90-SvHwkndRoQ\">\u7269\u7406\u5c64\u7684\u89e3\u6790<\/h3>\n<p>\u5728\u7269\u7406\u5c64\uff0c\u6578\u64da\u7684\u5b58\u5132\u65b9\u5f0f\u76f4\u63a5\u5f71\u97ff\u5230\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u6578\u64da\u5eab\u901a\u5e38\u6703\u4f7f\u7528\u7d22\u5f15\u4f86\u52a0\u901f\u67e5\u8a62\u3002\u7d22\u5f15\u662f\u4e00\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u80fd\u5920\u5feb\u901f\u5b9a\u4f4d\u5230\u7279\u5b9a\u6578\u64da\u3002\u4f8b\u5982\uff0c\u5728 MySQL \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\u5275\u5efa\u7d22\u5f15\uff1a<\/p>\n<pre><code>CREATE INDEX idx_name ON users (name);<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u52a0\u901f\u5c0d\u7528\u6236\u8868\u4e2d\u59d3\u540d\u7684\u67e5\u8a62\u3002<\/p>\n<h3 id=\"%e9%82%8f%e8%bc%af%e5%b1%a4%e7%9a%84%e8%a7%a3%e6%9e%90-SvHwkndRoQ\">\u908f\u8f2f\u5c64\u7684\u89e3\u6790<\/h3>\n<p>\u5728\u908f\u8f2f\u5c64\uff0c\u6578\u64da\u7684\u7d50\u69cb\u548c\u95dc\u4fc2\u662f\u95dc\u9375\u3002\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u4f7f\u7528\u5916\u9375\u4f86\u5efa\u7acb\u8868\u4e4b\u9593\u7684\u95dc\u806f\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6709\u4e00\u500b\u8a02\u55ae\u8868\u548c\u4e00\u500b\u7528\u6236\u8868\uff0c\u53ef\u4ee5\u901a\u904e\u5916\u9375\u5c07\u5b83\u5011\u9023\u63a5\u8d77\u4f86\uff1a<\/p>\n<pre><code>CREATE TABLE orders (\n    order_id INT PRIMARY KEY,\n    user_id INT,\n    FOREIGN KEY (user_id) REFERENCES users(user_id)\n);<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6bcf\u500b\u8a02\u55ae\u90fd\u8207\u4e00\u500b\u6709\u6548\u7684\u7528\u6236\u76f8\u95dc\u806f\u3002<\/p>\n<h3 id=\"%e8%a6%96%e5%9c%96%e5%b1%a4%e7%9a%84%e8%a7%a3%e6%9e%90-SvHwkndRoQ\">\u8996\u5716\u5c64\u7684\u89e3\u6790<\/h3>\n<p>\u5728\u8996\u5716\u5c64\uff0c\u7528\u6236\u901a\u904e\u67e5\u8a62\u8a9e\u8a00\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002SQL \u662f\u6700\u5e38\u7528\u7684\u67e5\u8a62\u8a9e\u8a00\uff0c\u80fd\u5920\u57f7\u884c\u5404\u7a2e\u64cd\u4f5c\uff0c\u5982\u67e5\u8a62\u3001\u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE age &gt; 18;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u8fd4\u56de\u6240\u6709\u5e74\u9f61\u5927\u65bc 18 \u6b72\u7684\u7528\u6236\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-SvHwkndRoQ\">\u7d50\u8ad6<\/h2>\n<p>\u6df1\u5165\u7406\u89e3\u6578\u64da\u5eab\u7684\u904b\u4f5c\u539f\u7406\uff0c\u7279\u5225\u662f\u5f9e\u81ea\u5e95\u5411\u4e0a\u7684\u89d2\u5ea6\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u548c\u7ba1\u7406\u54e1\u66f4\u6709\u6548\u5730\u8a2d\u8a08\u548c\u7dad\u8b77\u6578\u64da\u5eab\u7cfb\u7d71\u3002\u7121\u8ad6\u662f\u5728\u7269\u7406\u5c64\u7684\u5b58\u5132\u512a\u5316\uff0c\u908f\u8f2f\u5c64\u7684\u7d50\u69cb\u8a2d\u8a08\uff0c\u9084\u662f\u8996\u5716\u5c64\u7684\u67e5\u8a62\u512a\u5316\uff0c\u9019\u4e9b\u77e5\u8b58\u90fd\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7684\u904b\u4f5c\u6709\u9032\u4e00\u6b65\u7684\u8208\u8da3\uff0c\u6216\u662f\u9700\u8981\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u63a2\u7a76\u6578\u64da\u5eab\u7684\u904b\u4f5c\u539f\u7406\uff0c\u5f9e\u81ea\u5e95\u5411\u4e0a\u89e3\u6790\u6578\u64da\u5eab\u67b6\u69cb\u8207\u6280\u8853\uff0c\u63ed\u793a\u5176\u80cc\u5f8c\u7684\u6838\u5fc3\u6982\u5ff5\u8207\u61c9\u7528\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-181852","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/181852","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=181852"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/181852\/revisions"}],"predecessor-version":[{"id":181853,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/181852\/revisions\/181853"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=181852"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=181852"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=181852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}