{"id":180046,"date":"2024-11-09T06:57:20","date_gmt":"2024-11-08T22:57:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/180046\/"},"modified":"2024-11-09T06:57:21","modified_gmt":"2024-11-08T22:57:21","slug":"%e5%a6%82%e4%bd%95%e6%ad%a3%e7%a2%ba%e5%9f%b7%e8%a1%8c%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c-%e5%9f%b7%e8%a1%8c%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/180046\/","title":{"rendered":"\u5982\u4f55\u6b63\u78ba\u57f7\u884c\u66f4\u65b0\u6578\u64da\u5eab\u64cd\u4f5c (\u57f7\u884c\u66f4\u65b0\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e6%ad%a3%e7%a2%ba%e5%9f%b7%e8%a1%8c%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c-%e5%9f%b7%e8%a1%8c%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a%e5%ba%ab-paAsGGGMdJ\">\u5982\u4f55\u6b63\u78ba\u57f7\u884c\u66f4\u65b0\u6578\u64da\u5eab\u64cd\u4f5c (\u57f7\u884c\u66f4\u65b0\u6578\u64da\u5eab)<\/h1>\n<p>\u5728\u73fe\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u66f4\u65b0\u662f\u6bcf\u500b\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u5fc5\u9808\u638c\u63e1\u7684\u57fa\u672c\u6280\u80fd\u3002\u7121\u8ad6\u662f\u5c0d\u65bc\u5c0f\u578b\u61c9\u7528\u9084\u662f\u5927\u578b\u4f01\u696d\u7cfb\u7d71\uff0c\u6b63\u78ba\u5730\u57f7\u884c\u6578\u64da\u5eab\u66f4\u65b0\u64cd\u4f5c\u90fd\u662f\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u548c\u7cfb\u7d71\u7a69\u5b9a\u6027\u7684\u95dc\u9375\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u6b63\u78ba\u57f7\u884c\u66f4\u65b0\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\u548c\u7bc4\u4f8b\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9b%b4%e6%96%b0%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-paAsGGGMdJ\">\u6578\u64da\u5eab\u66f4\u65b0\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u6578\u64da\u5eab\u66f4\u65b0\u64cd\u4f5c\u901a\u5e38\u662f\u6307\u5c0d\u73fe\u6709\u6578\u64da\u9032\u884c\u4fee\u6539\u7684\u904e\u7a0b\u3002\u9019\u4e9b\u64cd\u4f5c\u53ef\u4ee5\u662f\u63d2\u5165\u65b0\u6578\u64da\u3001\u66f4\u65b0\u73fe\u6709\u6578\u64da\u6216\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u3002\u66f4\u65b0\u64cd\u4f5c\u7684\u4e3b\u8981\u76ee\u7684\u662f\u4fdd\u6301\u6578\u64da\u7684\u6e96\u78ba\u6027\u548c\u4e00\u81f4\u6027\u3002<\/p>\n<h2 id=\"%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%b8%b8%e8%a6%8b%e6%96%b9%e6%b3%95-paAsGGGMdJ\">\u66f4\u65b0\u6578\u64da\u5eab\u7684\u5e38\u898b\u65b9\u6cd5<\/h2>\n<p>\u5728\u57f7\u884c\u66f4\u65b0\u64cd\u4f5c\u6642\uff0c\u958b\u767c\u8005\u901a\u5e38\u6703\u4f7f\u7528 SQL \u8a9e\u8a00\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684 SQL \u66f4\u65b0\u8a9e\u53e5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-update-%e8%aa%9e%e5%8f%a5-paAsGGGMdJ\">1. \u4f7f\u7528 UPDATE \u8a9e\u53e5<\/h3>\n<pre><code>UPDATE \u8868\u540d\nSET \u52171 = \u503c1, \u52172 = \u503c2, ...\nWHERE \u689d\u4ef6;<\/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\u66f4\u65b0\u7528\u6236\u7684\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\uff1a<\/p>\n<pre><code>UPDATE users\nSET email = 'newemail@example.com'\nWHERE id = 1;<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-insert-%e8%aa%9e%e5%8f%a5-paAsGGGMdJ\">2. \u4f7f\u7528 INSERT \u8a9e\u53e5<\/h3>\n<p>\u7576\u9700\u8981\u6dfb\u52a0\u65b0\u6578\u64da\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>INSERT<\/code> \u8a9e\u53e5\uff1a<\/p>\n<pre><code>INSERT INTO \u8868\u540d (\u52171, \u52172, ...)\nVALUES (\u503c1, \u503c2, ...);<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><code>INSERT INTO users (name, email)\nVALUES ('John Doe', 'john@example.com');<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8-delete-%e8%aa%9e%e5%8f%a5-paAsGGGMdJ\">3. \u4f7f\u7528 DELETE \u8a9e\u53e5<\/h3>\n<p>\u5982\u679c\u9700\u8981\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>DELETE<\/code> \u8a9e\u53e5\uff1a<\/p>\n<pre><code>DELETE FROM \u8868\u540d\nWHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><code>DELETE FROM users\nWHERE id = 1;<\/code><\/pre>\n<h2 id=\"%e5%9f%b7%e8%a1%8c%e6%9b%b4%e6%96%b0%e6%93%8d%e4%bd%9c%e7%9a%84%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-paAsGGGMdJ\">\u57f7\u884c\u66f4\u65b0\u64cd\u4f5c\u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li><strong>\u5099\u4efd\u6578\u64da\uff1a<\/strong>\u5728\u57f7\u884c\u4efb\u4f55\u66f4\u65b0\u64cd\u4f5c\u4e4b\u524d\uff0c\u52d9\u5fc5\u5099\u4efd\u6578\u64da\u5eab\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li><strong>\u4f7f\u7528\u4e8b\u52d9\uff1a<\/strong>\u5728\u57f7\u884c\u591a\u500b\u66f4\u65b0\u64cd\u4f5c\u6642\uff0c\u4f7f\u7528\u4e8b\u52d9\u53ef\u4ee5\u78ba\u4fdd\u6240\u6709\u64cd\u4f5c\u8981\u9ebc\u5168\u90e8\u6210\u529f\uff0c\u8981\u9ebc\u5168\u90e8\u5931\u6557\uff0c\u5f9e\u800c\u4fdd\u6301\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<li><strong>\u6e2c\u8a66\u66f4\u65b0\u8a9e\u53e5\uff1a<\/strong>\u5728\u751f\u7522\u74b0\u5883\u4e2d\u57f7\u884c\u66f4\u65b0\u8a9e\u53e5\u4e4b\u524d\uff0c\u61c9\u5728\u6e2c\u8a66\u74b0\u5883\u4e2d\u9032\u884c\u5145\u5206\u6e2c\u8a66\uff0c\u4ee5\u78ba\u4fdd\u5176\u6b63\u78ba\u6027\u3002<\/li>\n<li><strong>\u9650\u5236\u66f4\u65b0\u7bc4\u570d\uff1a<\/strong>\u5728 <code>WHERE<\/code> \u5b50\u53e5\u4e2d\u660e\u78ba\u6307\u5b9a\u689d\u4ef6\uff0c\u4ee5\u907f\u514d\u610f\u5916\u66f4\u65b0\u904e\u591a\u7684\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e9%8c%af%e8%aa%a4%e5%8f%8a%e5%85%b6%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-paAsGGGMdJ\">\u5e38\u898b\u932f\u8aa4\u53ca\u5176\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u5728\u57f7\u884c\u66f4\u65b0\u64cd\u4f5c\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u5e38\u898b\u932f\u8aa4\uff1a<\/p>\n<ul>\n<li><strong>\u672a\u4f7f\u7528 WHERE \u5b50\u53e5\uff1a<\/strong>\u5982\u679c\u5728 <code>UPDATE<\/code> \u6216 <code>DELETE<\/code> \u8a9e\u53e5\u4e2d\u672a\u4f7f\u7528 <code>WHERE<\/code> \u5b50\u53e5\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6574\u500b\u8868\u7684\u6578\u64da\u88ab\u66f4\u65b0\u6216\u522a\u9664\u3002\u89e3\u6c7a\u65b9\u6848\u662f\u59cb\u7d42\u6aa2\u67e5\u689d\u4ef6\u3002<\/li>\n<li><strong>\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\uff1a<\/strong>\u5728\u66f4\u65b0\u6578\u64da\u6642\uff0c\u78ba\u4fdd\u63d0\u4f9b\u7684\u503c\u8207\u5217\u7684\u6578\u64da\u985e\u578b\u76f8\u7b26\uff0c\u4ee5\u907f\u514d\u932f\u8aa4\u3002<\/li>\n<li><strong>\u4e8b\u52d9\u672a\u63d0\u4ea4\uff1a<\/strong>\u5728\u4f7f\u7528\u4e8b\u52d9\u6642\uff0c\u78ba\u4fdd\u5728\u6240\u6709\u64cd\u4f5c\u5b8c\u6210\u5f8c\u63d0\u4ea4\u4e8b\u52d9\uff0c\u5426\u5247\u66f4\u6539\u5c07\u4e0d\u6703\u751f\u6548\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-paAsGGGMdJ\">\u7d50\u8ad6<\/h2>\n<p>\u6b63\u78ba\u57f7\u884c\u66f4\u65b0\u6578\u64da\u5eab\u64cd\u4f5c\u662f\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u548c\u7cfb\u7d71\u7a69\u5b9a\u6027\u7684\u95dc\u9375\u3002\u901a\u904e\u9075\u5faa\u6700\u4f73\u5be6\u8e10\u3001\u4f7f\u7528\u9069\u7576\u7684 SQL \u8a9e\u53e5\u4ee5\u53ca\u907f\u514d\u5e38\u898b\u932f\u8aa4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u66f4\u65b0\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\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> \u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u6d41\u66a2\u6027\u548c\u5b89\u5168\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u6b63\u78ba\u57f7\u884c\u66f4\u65b0\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u78ba\u4fdd\u6578\u64da\u6e96\u78ba\u6027\u8207\u4e00\u81f4\u6027\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u5b89\u5168\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-180046","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180046","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=180046"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180046\/revisions"}],"predecessor-version":[{"id":180047,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180046\/revisions\/180047"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=180046"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=180046"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=180046"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}