{"id":157360,"date":"2024-11-02T22:26:22","date_gmt":"2024-11-02T14:26:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/157360\/"},"modified":"2024-11-02T22:26:23","modified_gmt":"2024-11-02T14:26:23","slug":"%e9%99%84%e5%8a%a0%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7%e5%8f%8a%e5%b8%b8%e7%94%a8-sql-%e8%aa%9e%e5%8f%a5%ef%bc%88%e9%99%84%e5%8a%a0%e6%95%b8%e6%93%9a%e5%ba%ab-sql-%e8%aa%9e","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/157360\/","title":{"rendered":"\u9644\u52a0\u6578\u64da\u5eab\u7684\u5fc5\u8981\u6027\u53ca\u5e38\u7528 SQL \u8a9e\u53e5\uff08\u9644\u52a0\u6578\u64da\u5eab SQL \u8a9e\u53e5\uff09"},"content":{"rendered":"<h1 id=\"%e9%99%84%e5%8a%a0%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7%e5%8f%8a%e5%b8%b8%e7%94%a8-sql-%e8%aa%9e%e5%8f%a5-epyGAWirzz\">\u9644\u52a0\u6578\u64da\u5eab\u7684\u5fc5\u8981\u6027\u53ca\u5e38\u7528 SQL \u8a9e\u53e5<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u64cd\u4f5c\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4f01\u696d\u9084\u662f\u500b\u4eba\u9805\u76ee\uff0c\u9644\u52a0\u6578\u64da\u5eab\u7684\u4f7f\u7528\u90fd\u80fd\u986f\u8457\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u548c\u9748\u6d3b\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9644\u52a0\u6578\u64da\u5eab\u7684\u5fc5\u8981\u6027\u4ee5\u53ca\u4e00\u4e9b\u5e38\u7528\u7684 SQL \u8a9e\u53e5\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u6578\u64da\u5eab\u7684\u904b\u4f5c\u3002<\/p>\n<h2 id=\"%e9%99%84%e5%8a%a0%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-epyGAWirzz\">\u9644\u52a0\u6578\u64da\u5eab\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u9644\u52a0\u6578\u64da\u5eab\u7684\u5fc5\u8981\u6027\u4e3b\u8981\u9ad4\u73fe\u5728\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u5b58\u5132\u8207\u7ba1\u7406\uff1a<\/strong>\u9644\u52a0\u6578\u64da\u5eab\u80fd\u5920\u6709\u6548\u5730\u5b58\u5132\u548c\u7ba1\u7406\u5927\u91cf\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u9ad8\u6548\u7684\u67e5\u8a62\u548c\u66f4\u65b0\u529f\u80fd\u3002\u9019\u5c0d\u65bc\u9700\u8981\u8655\u7406\u5927\u91cf\u6578\u64da\u7684\u61c9\u7528\u7a0b\u5e8f\u5c24\u70ba\u91cd\u8981\u3002<\/li>\n<li><strong>\u6578\u64da\u5b89\u5168\u6027\uff1a<\/strong>\u901a\u904e\u4f7f\u7528\u6578\u64da\u5eab\uff0c\u4f01\u696d\u53ef\u4ee5\u66f4\u597d\u5730\u63a7\u5236\u6578\u64da\u7684\u8a2a\u554f\u6b0a\u9650\uff0c\u78ba\u4fdd\u654f\u611f\u4fe1\u606f\u7684\u5b89\u5168\u6027\u3002<\/li>\n<li><strong>\u6578\u64da\u5206\u6790\uff1a<\/strong>\u9644\u52a0\u6578\u64da\u5eab\u80fd\u5920\u652f\u6301\u8907\u96dc\u7684\u67e5\u8a62\u548c\u6578\u64da\u5206\u6790\uff0c\u5e6b\u52a9\u4f01\u696d\u505a\u51fa\u66f4\u660e\u667a\u7684\u6c7a\u7b56\u3002<\/li>\n<li><strong>\u591a\u7528\u6236\u652f\u6301\uff1a<\/strong>\u6578\u64da\u5eab\u5141\u8a31\u591a\u500b\u7528\u6236\u540c\u6642\u8a2a\u554f\u548c\u64cd\u4f5c\u6578\u64da\uff0c\u9019\u5c0d\u65bc\u5718\u968a\u5408\u4f5c\u548c\u9805\u76ee\u7ba1\u7406\u81f3\u95dc\u91cd\u8981\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%b8%b8%e7%94%a8-sql-%e8%aa%9e%e5%8f%a5-epyGAWirzz\">\u5e38\u7528 SQL \u8a9e\u53e5<\/h2>\n<p>SQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u662f\u7528\u65bc\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u7684\u6a19\u6e96\u8a9e\u8a00\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684 SQL \u8a9e\u53e5\u53ca\u5176\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e5%ba%ab-epyGAWirzz\">1. \u5275\u5efa\u6578\u64da\u5eab<\/h3>\n<pre><code>CREATE DATABASE my_database;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u7528\u65bc\u5275\u5efa\u4e00\u500b\u65b0\u7684\u6578\u64da\u5eab\uff0c\u540d\u70ba <code>my_database<\/code>\u3002<\/p>\n<h3 id=\"2-%e5%89%b5%e5%bb%ba%e8%a1%a8-epyGAWirzz\">2. \u5275\u5efa\u8868<\/h3>\n<pre><code>CREATE TABLE users (\n    id INT PRIMARY KEY AUTO_INCREMENT,\n    username VARCHAR(50) NOT NULL,\n    password VARCHAR(50) NOT NULL,\n    email VARCHAR(100)\n);<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u7528\u65bc\u5275\u5efa\u4e00\u500b\u540d\u70ba <code>users<\/code> \u7684\u8868\uff0c\u4e26\u5b9a\u7fa9\u5176\u7d50\u69cb\u3002<\/p>\n<h3 id=\"3-%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a-epyGAWirzz\">3. \u63d2\u5165\u6578\u64da<\/h3>\n<pre><code>INSERT INTO users (username, password, email) \nVALUES ('john_doe', 'securepassword', 'john@example.com');<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u7528\u65bc\u5411 <code>users<\/code> \u8868\u4e2d\u63d2\u5165\u4e00\u689d\u65b0\u8a18\u9304\u3002<\/p>\n<h3 id=\"4-%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a-epyGAWirzz\">4. \u67e5\u8a62\u6578\u64da<\/h3>\n<pre><code>SELECT * FROM users WHERE email = 'john@example.com';<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u7528\u65bc\u67e5\u8a62 <code>users<\/code> \u8868\u4e2d\u96fb\u5b50\u90f5\u4ef6\u70ba <code>john@example.com<\/code> \u7684\u7528\u6236\u4fe1\u606f\u3002<\/p>\n<h3 id=\"5-%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a-epyGAWirzz\">5. \u66f4\u65b0\u6578\u64da<\/h3>\n<pre><code>UPDATE users SET password = 'newpassword' WHERE username = 'john_doe';<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u7528\u65bc\u66f4\u65b0 <code>users<\/code> \u8868\u4e2d\u7528\u6236\u540d\u70ba <code>john_doe<\/code> \u7684\u7528\u6236\u5bc6\u78bc\u3002<\/p>\n<h3 id=\"6-%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a-epyGAWirzz\">6. \u522a\u9664\u6578\u64da<\/h3>\n<pre><code>DELETE FROM users WHERE id = 1;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u7528\u65bc\u522a\u9664 <code>users<\/code> \u8868\u4e2d ID \u70ba 1 \u7684\u7528\u6236\u8a18\u9304\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-epyGAWirzz\">\u7d50\u8ad6<\/h2>\n<p>\u9644\u52a0\u6578\u64da\u5eab\u5728\u73fe\u4ee3\u61c9\u7528\u4e2d\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\uff0c\u7121\u8ad6\u662f\u6578\u64da\u7684\u5b58\u5132\u3001\u7ba1\u7406\u9084\u662f\u5206\u6790\uff0c\u90fd\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002\u638c\u63e1\u5e38\u7528\u7684 SQL \u8a9e\u53e5\u4e0d\u50c5\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u64cd\u4f5c\u6578\u64da\u5eab\uff0c\u9084\u80fd\u63d0\u5347\u6574\u9ad4\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u89e3\u6c7a\u65b9\u6848\u5c07\u662f\u63d0\u5347\u696d\u52d9\u904b\u71df\u6548\u7387\u7684\u95dc\u9375\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u9644\u52a0\u6578\u64da\u5eab\u7684\u5fc5\u8981\u6027\u53ca\u5e38\u7528 SQL \u8a9e\u53e5\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u512a\u5316\u67e5\u8a62\u6027\u80fd\uff0c\u52a9\u529b\u696d\u52d9\u6c7a\u7b56\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-157360","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157360","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=157360"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157360\/revisions"}],"predecessor-version":[{"id":157361,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157360\/revisions\/157361"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=157360"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=157360"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=157360"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}