{"id":172557,"date":"2024-11-07T14:07:25","date_gmt":"2024-11-07T06:07:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/172557\/"},"modified":"2024-11-07T14:07:26","modified_gmt":"2024-11-07T06:07:26","slug":"%e5%a6%82%e4%bd%95%e7%b7%a8%e5%af%ab%e6%9c%89%e6%95%88%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bf%ae%e6%94%b9%e8%aa%9e%e5%8f%a5-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bf%ae%e6%94%b9%e8%aa%9e%e5%8f%a5%e6%80%8e","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/172557\/","title":{"rendered":"\u5982\u4f55\u7de8\u5beb\u6709\u6548\u7684\u6578\u64da\u5eab\u4fee\u6539\u8a9e\u53e5 (\u6578\u64da\u5eab\u4fee\u6539\u8a9e\u53e5\u600e\u9ebc\u5beb)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e7%b7%a8%e5%af%ab%e6%9c%89%e6%95%88%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bf%ae%e6%94%b9%e8%aa%9e%e5%8f%a5-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bf%ae%e6%94%b9%e8%aa%9e%e5%8f%a5%e6%80%8e-IyDbDhsLeS\">\u5982\u4f55\u7de8\u5beb\u6709\u6548\u7684\u6578\u64da\u5eab\u4fee\u6539\u8a9e\u53e5 (\u6578\u64da\u5eab\u4fee\u6539\u8a9e\u53e5\u600e\u9ebc\u5beb)<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u6578\u64da\u5eab\u4fee\u6539\u8a9e\u53e5\u662f\u7528\u4f86\u66f4\u65b0\u3001\u522a\u9664\u6216\u63d2\u5165\u6578\u64da\u7684\u91cd\u8981\u5de5\u5177\u3002\u9019\u4e9b\u8a9e\u53e5\u901a\u5e38\u4f7f\u7528 SQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u4f86\u57f7\u884c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u7de8\u5beb\u6709\u6548\u7684\u6578\u64da\u5eab\u4fee\u6539\u8a9e\u53e5\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u7bc4\u4f8b\u548c\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bf%ae%e6%94%b9%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e9%a1%9e%e5%9e%8b-IyDbDhsLeS\">\u6578\u64da\u5eab\u4fee\u6539\u8a9e\u53e5\u7684\u57fa\u672c\u985e\u578b<\/h2>\n<p>\u6578\u64da\u5eab\u4fee\u6539\u8a9e\u53e5\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u5e7e\u7a2e\u985e\u578b\uff1a<\/p>\n<ul>\n<li><strong>INSERT<\/strong>\uff1a\u7528\u65bc\u5411\u6578\u64da\u8868\u4e2d\u63d2\u5165\u65b0\u6578\u64da\u3002<\/li>\n<li><strong>UPDATE<\/strong>\uff1a\u7528\u65bc\u66f4\u65b0\u5df2\u5b58\u5728\u7684\u6578\u64da\u3002<\/li>\n<li><strong>DELETE<\/strong>\uff1a\u7528\u65bc\u522a\u9664\u6578\u64da\u8868\u4e2d\u7684\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b7%a8%e5%af%ab-insert-%e8%aa%9e%e5%8f%a5-IyDbDhsLeS\">\u7de8\u5beb INSERT \u8a9e\u53e5<\/h2>\n<p>INSERT \u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>INSERT INTO \u8868\u540d (\u6b04\u4f4d1, \u6b04\u4f4d2, \u6b04\u4f4d3) VALUES (\u503c1, \u503c2, \u503c3);<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>users<\/code> \u7684\u8868\uff0c\u4e26\u5e0c\u671b\u63d2\u5165\u4e00\u500b\u65b0\u7528\u6236\u7684\u6578\u64da\uff1a<\/p>\n<pre><code>INSERT INTO users (username, email, age) VALUES ('john_doe', 'john@example.com', 30);<\/code><\/pre>\n<h2 id=\"%e7%b7%a8%e5%af%ab-update-%e8%aa%9e%e5%8f%a5-IyDbDhsLeS\">\u7de8\u5beb UPDATE \u8a9e\u53e5<\/h2>\n<p>UPDATE \u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>UPDATE \u8868\u540d SET \u6b04\u4f4d1 = \u503c1, \u6b04\u4f4d2 = \u503c2 WHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u60f3\u8981\u66f4\u65b0\u7528\u6236 <code>john_doe<\/code> \u7684\u5e74\u9f61\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n<pre><code>UPDATE users SET age = 31 WHERE username = 'john_doe';<\/code><\/pre>\n<p>\u5728\u4f7f\u7528 UPDATE \u8a9e\u53e5\u6642\uff0c\u52d9\u5fc5\u5c0f\u5fc3 <code>WHERE<\/code> \u5b50\u53e5\uff0c\u56e0\u70ba\u5982\u679c\u7701\u7565\u5b83\uff0c\u5c07\u6703\u66f4\u65b0\u6574\u500b\u8868\u4e2d\u7684\u6240\u6709\u8a18\u9304\u3002<\/p>\n<h2 id=\"%e7%b7%a8%e5%af%ab-delete-%e8%aa%9e%e5%8f%a5-IyDbDhsLeS\">\u7de8\u5beb DELETE \u8a9e\u53e5<\/h2>\n<p>DELETE \u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>DELETE FROM \u8868\u540d WHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u60f3\u8981\u522a\u9664\u7528\u6236 <code>john_doe<\/code> \u7684\u6578\u64da\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n<pre><code>DELETE FROM users WHERE username = 'john_doe';<\/code><\/pre>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-IyDbDhsLeS\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u5728\u7de8\u5beb\u6578\u64da\u5eab\u4fee\u6539\u8a9e\u53e5\u6642\uff0c\u9075\u5faa\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\u53ef\u4ee5\u5e6b\u52a9\u63d0\u9ad8\u6548\u7387\u548c\u5b89\u5168\u6027\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u4e8b\u52d9<\/strong>\uff1a\u5728\u57f7\u884c\u591a\u500b\u4fee\u6539\u64cd\u4f5c\u6642\uff0c\u4f7f\u7528\u4e8b\u52d9\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 <code>BEGIN TRANSACTION<\/code> \u548c 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