{"id":196205,"date":"2024-11-13T21:21:21","date_gmt":"2024-11-13T13:21:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/196205\/"},"modified":"2024-11-13T21:21:22","modified_gmt":"2024-11-13T13:21:22","slug":"%e6%8e%8c%e6%8f%a1%e6%95%b8%e6%93%9a%e5%ba%ab%e5%91%bd%e4%bb%a4%ef%bc%8c%e8%ae%93%e6%95%b8%e6%93%9a%e6%93%8d%e4%bd%9c%e6%9b%b4%e9%ab%98%e6%95%88-%e6%95%b8%e6%93%9a%e5%ba%ab-%e5%91%bd%e4%bb%a4","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/196205\/","title":{"rendered":"\u638c\u63e1\u6578\u64da\u5eab\u547d\u4ee4\uff0c\u8b93\u6578\u64da\u64cd\u4f5c\u66f4\u9ad8\u6548 (\u6578\u64da\u5eab \u547d\u4ee4)"},"content":{"rendered":"<h1 id=\"%e6%8e%8c%e6%8f%a1%e6%95%b8%e6%93%9a%e5%ba%ab%e5%91%bd%e4%bb%a4%ef%bc%8c%e8%ae%93%e6%95%b8%e6%93%9a%e6%93%8d%e4%bd%9c%e6%9b%b4%e9%ab%98%e6%95%88-MGdnAuKDFk\">\u638c\u63e1\u6578\u64da\u5eab\u547d\u4ee4\uff0c\u8b93\u6578\u64da\u64cd\u4f5c\u66f4\u9ad8\u6548<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u5df2\u6210\u70ba\u4f01\u696d\u548c\u958b\u767c\u8005\u4e0d\u53ef\u6216\u7f3a\u7684\u5de5\u5177\u3002\u7121\u8ad6\u662f\u7528\u65bc\u5b58\u5132\u3001\u6aa2\u7d22\u9084\u662f\u7ba1\u7406\u6578\u64da\uff0c\u638c\u63e1\u6578\u64da\u5eab\u547d\u4ee4\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u6578\u64da\u64cd\u4f5c\u7684\u6548\u7387\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u5e38\u7528\u7684\u6578\u64da\u5eab\u547d\u4ee4\uff0c\u4e26\u63d0\u4f9b\u5be6\u7528\u7684\u793a\u4f8b\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u5229\u7528\u9019\u4e9b\u547d\u4ee4\u4f86\u512a\u5316\u6578\u64da\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e5%91%bd%e4%bb%a4%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-MGdnAuKDFk\">\u6578\u64da\u5eab\u547d\u4ee4\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u6578\u64da\u5eab\u547d\u4ee4\u901a\u5e38\u5206\u70ba\u5e7e\u500b\u4e3b\u8981\u985e\u5225\uff0c\u5305\u62ec\u6578\u64da\u5b9a\u7fa9\u8a9e\u8a00\uff08DDL\uff09\u3001\u6578\u64da\u64cd\u4f5c\u8a9e\u8a00\uff08DML\uff09\u3001\u6578\u64da\u63a7\u5236\u8a9e\u8a00\uff08DCL\uff09\u548c\u4e8b\u52d9\u63a7\u5236\u8a9e\u8a00\uff08TCL\uff09\u3002\u9019\u4e9b\u547d\u4ee4\u5404\u81ea\u8ca0\u8cac\u4e0d\u540c\u7684\u529f\u80fd\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u5b9a\u7fa9\u8a9e\u8a00\uff08DDL\uff09<\/strong>\uff1a\u7528\u65bc\u5b9a\u7fa9\u6578\u64da\u5eab\u7d50\u69cb\uff0c\u5982\u5275\u5efa\u3001\u4fee\u6539\u548c\u522a\u9664\u8868\u683c\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 <code>CREATE TABLE<\/code> \u547d\u4ee4\u4f86\u5275\u5efa\u65b0\u8868\u3002<\/li>\n<li><strong>\u6578\u64da\u64cd\u4f5c\u8a9e\u8a00\uff08DML\uff09<\/strong>\uff1a\u7528\u65bc\u64cd\u4f5c\u6578\u64da\uff0c\u5982\u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 <code>INSERT INTO<\/code> \u547d\u4ee4\u4f86\u6dfb\u52a0\u65b0\u6578\u64da\u3002<\/li>\n<li><strong>\u6578\u64da\u63a7\u5236\u8a9e\u8a00\uff08DCL\uff09<\/strong>\uff1a\u7528\u65bc\u63a7\u5236\u5c0d\u6578\u64da\u7684\u8a2a\u554f\u6b0a\u9650\uff0c\u5982\u6388\u6b0a\u548c\u64a4\u92b7\u6b0a\u9650\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 <code>GRANT<\/code> \u547d\u4ee4\u4f86\u6388\u4e88\u7528\u6236\u6b0a\u9650\u3002<\/li>\n<li><strong>\u4e8b\u52d9\u63a7\u5236\u8a9e\u8a00\uff08TCL\uff09<\/strong>\uff1a\u7528\u65bc\u7ba1\u7406\u4e8b\u52d9\u7684\u57f7\u884c\uff0c\u5982\u63d0\u4ea4\u548c\u56de\u6efe\u4e8b\u52d9\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 <code>COMMIT<\/code> \u547d\u4ee4\u4f86\u4fdd\u5b58\u66f4\u6539\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%b8%b8%e7%94%a8%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e5%91%bd%e4%bb%a4%e7%a4%ba%e4%be%8b-MGdnAuKDFk\">\u5e38\u7528\u7684\u6578\u64da\u5eab\u547d\u4ee4\u793a\u4f8b<\/h2>\n<h3 id=\"1-%e5%89%b5%e5%bb%ba%e8%a1%a8%e6%a0%bc-MGdnAuKDFk\">1. \u5275\u5efa\u8868\u683c<\/h3>\n<pre><code>CREATE TABLE users (\n    id INT PRIMARY KEY AUTO_INCREMENT,\n    username VARCHAR(50) NOT NULL,\n    email VARCHAR(100) NOT NULL,\n    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP\n);<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba <code>users<\/code> \u7684\u8868\u683c\uff0c\u5305\u542b\u7528\u6236\u7684\u57fa\u672c\u4fe1\u606f\u3002<\/p>\n<h3 id=\"2-%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a-MGdnAuKDFk\">2. \u63d2\u5165\u6578\u64da<\/h3>\n<pre><code>INSERT INTO users (username, email) VALUES ('john_doe', 'john@example.com');<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u4e00\u500b\u65b0\u7528\u6236\u7684\u6578\u64da\u63d2\u5165\u5230 <code>users<\/code> \u8868\u4e2d\u3002<\/p>\n<h3 id=\"3-%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a-MGdnAuKDFk\">3. \u67e5\u8a62\u6578\u64da<\/h3>\n<pre><code>SELECT * FROM users WHERE email = 'john@example.com';<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u67e5\u8a62\u96fb\u5b50\u90f5\u4ef6\u70ba <code>john@example.com<\/code> \u7684\u7528\u6236\u4fe1\u606f\u3002<\/p>\n<h3 id=\"4-%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a-MGdnAuKDFk\">4. \u66f4\u65b0\u6578\u64da<\/h3>\n<pre><code>UPDATE users SET username = 'john_updated' WHERE id = 1;<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u7528\u6236ID\u70ba1\u7684\u7528\u6236\u540d\u66f4\u65b0\u70ba <code>john_updated<\/code>\u3002<\/p>\n<h3 id=\"5-%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a-MGdnAuKDFk\">5. \u522a\u9664\u6578\u64da<\/h3>\n<pre><code>DELETE FROM users WHERE id = 1;<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u522a\u9664ID\u70ba1\u7684\u7528\u6236\u3002<\/p>\n<h2 id=\"%e6%8f%90%e9%ab%98%e6%95%b8%e6%93%9a%e6%93%8d%e4%bd%9c%e6%95%88%e7%8e%87%e7%9a%84%e6%8a%80%e5%b7%a7-MGdnAuKDFk\">\u63d0\u9ad8\u6578\u64da\u64cd\u4f5c\u6548\u7387\u7684\u6280\u5de7<\/h2>\n<p>\u9664\u4e86\u638c\u63e1\u57fa\u672c\u7684\u6578\u64da\u5eab\u547d\u4ee4\uff0c\u9084\u6709\u4e00\u4e9b\u6280\u5de7\u53ef\u4ee5\u5e6b\u52a9\u63d0\u9ad8\u6578\u64da\u64cd\u4f5c\u7684\u6548\u7387\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u7d22\u5f15<\/strong>\uff1a\u70ba\u5e38\u7528\u7684\u67e5\u8a62\u5b57\u6bb5\u5275\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002<\/li>\n<li><strong>\u6279\u91cf\u64cd\u4f5c<\/strong>\uff1a\u4f7f\u7528\u6279\u91cf\u63d2\u5165\u6216\u66f4\u65b0\u547d\u4ee4\uff0c\u6e1b\u5c11\u8207\u6578\u64da\u5eab\u7684\u4ea4\u4e92\u6b21\u6578\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<li><strong>\u512a\u5316\u67e5\u8a62<\/strong>\uff1a\u4f7f\u7528 <code>EXPLAIN<\/code> \u547d\u4ee4\u5206\u6790\u67e5\u8a62\u8a08\u5283\uff0c\u627e\u51fa\u6027\u80fd\u74f6\u9838\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-MGdnAuKDFk\">\u7d50\u8ad6<\/h2>\n<p>\u638c\u63e1\u6578\u64da\u5eab\u547d\u4ee4\u662f\u63d0\u9ad8\u6578\u64da\u64cd\u4f5c\u6548\u7387\u7684\u95dc\u9375\u3002\u901a\u904e\u5b78\u7fd2\u548c\u5be6\u8e10\u9019\u4e9b\u547d\u4ee4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u5347\u6574\u9ad4\u5de5\u4f5c\u6548\u7387\u3002\u7121\u8ad6\u662f\u5275\u5efa\u8868\u683c\u3001\u63d2\u5165\u6578\u64da\u9084\u662f\u67e5\u8a62\u4fe1\u606f\uff0c\u719f\u7df4\u904b\u7528\u9019\u4e9b\u547d\u4ee4\u90fd\u80fd\u8b93\u6578\u64da\u64cd\u4f5c\u8b8a\u5f97\u66f4\u52a0\u9ad8\u6548\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\u64cd\u4f5c\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1\u6578\u64da\u5eab\u547d\u4ee4\uff0c\u63d0\u5347\u6578\u64da\u64cd\u4f5c\u6548\u7387\uff0c\u7c21\u5316\u67e5\u8a62\u8207\u7ba1\u7406\uff0c\u8b93\u6578\u64da\u8655\u7406\u66f4\u5feb\u901f\u3001\u6e96\u78ba\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-196205","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196205","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=196205"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196205\/revisions"}],"predecessor-version":[{"id":196206,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196205\/revisions\/196206"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=196205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=196205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=196205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}