{"id":179864,"date":"2024-11-09T05:26:17","date_gmt":"2024-11-08T21:26:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179864\/"},"modified":"2024-11-09T05:26:18","modified_gmt":"2024-11-08T21:26:18","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%88%aa%e9%99%a4%e6%9f%90%e4%b8%80%e8%a1%8c%e6%95%b8%e6%93%9a-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%aa%e9%99%a4%e6%9f%90%e4%b8%80%e8%a1%8c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179864\/","title":{"rendered":"\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u522a\u9664\u67d0\u4e00\u884c\u6578\u64da (\u6578\u64da\u5eab\u522a\u9664\u67d0\u4e00\u884c\u6578\u64da)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%88%aa%e9%99%a4%e6%9f%90%e4%b8%80%e8%a1%8c%e6%95%b8%e6%93%9a-inUwVUBVBH\">\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u522a\u9664\u67d0\u4e00\u884c\u6578\u64da<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u662f\u4e00\u9805\u5e38\u898b\u7684\u64cd\u4f5c\u3002\u7121\u8ad6\u662f\u56e0\u70ba\u6578\u64da\u904e\u6642\u3001\u932f\u8aa4\u6216\u662f\u56e0\u70ba\u696d\u52d9\u9700\u6c42\u7684\u8b8a\u5316\uff0c\u4e86\u89e3\u5982\u4f55\u6b63\u78ba\u5730\u522a\u9664\u6578\u64da\u662f\u6bcf\u4f4d\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u5fc5\u9808\u638c\u63e1\u7684\u6280\u80fd\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5728\u6578\u64da\u5eab\u4e2d\u522a\u9664\u67d0\u4e00\u884c\u6578\u64da\u7684\u57fa\u672c\u65b9\u6cd5\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u6ce8\u610f\u4e8b\u9805\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%aa%e9%99%a4%e6%93%8d%e4%bd%9c%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-inUwVUBVBH\">\u6578\u64da\u5eab\u522a\u9664\u64cd\u4f5c\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u4e2d\uff0c\u522a\u9664\u6578\u64da\u901a\u5e38\u662f\u901a\u904e SQL \u8a9e\u53e5\u4f86\u5be6\u73fe\u7684\u3002\u6700\u5e38\u7528\u7684\u522a\u9664\u8a9e\u53e5\u662f <code>DELETE<\/code>\u3002\u9019\u500b\u8a9e\u53e5\u53ef\u4ee5\u6839\u64da\u7279\u5b9a\u7684\u689d\u4ef6\u4f86\u522a\u9664\u4e00\u884c\u6216\u591a\u884c\u6578\u64da\u3002\u4f7f\u7528 <code>DELETE<\/code> \u8a9e\u53e5\u6642\uff0c\u5fc5\u9808\u5c0f\u5fc3\uff0c\u56e0\u70ba\u4e00\u65e6\u6578\u64da\u88ab\u522a\u9664\uff0c\u5c07\u7121\u6cd5\u6062\u5fa9\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-delete-%e8%aa%9e%e5%8f%a5%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a-inUwVUBVBH\">\u4f7f\u7528 DELETE \u8a9e\u53e5\u522a\u9664\u6578\u64da<\/h2>\n<p>\u57fa\u672c\u7684 <code>DELETE<\/code> \u8a9e\u53e5\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>DELETE FROM \u8868\u540d WHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>\u8868\u540d<\/code> \u662f\u4f60\u60f3\u8981\u522a\u9664\u6578\u64da\u7684\u8868\u7684\u540d\u7a31\uff0c\u800c <code>\u689d\u4ef6<\/code> \u5247\u662f\u7528\u4f86\u6307\u5b9a\u8981\u522a\u9664\u54ea\u4e00\u884c\u6578\u64da\u7684\u689d\u4ef6\u3002\u53ea\u6709\u6eff\u8db3\u689d\u4ef6\u7684\u884c\u624d\u6703\u88ab\u522a\u9664\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b-inUwVUBVBH\">\u793a\u4f8b<\/h3>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>users<\/code> \u7684\u8868\uff0c\u8868\u4e2d\u5305\u542b\u7528\u6236\u7684\u57fa\u672c\u4fe1\u606f\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre><code>+----+----------+-----------+\n| ID | Username | Email     |\n+----+----------+-----------+\n| 1  | Alice    | alice@example.com |\n| 2  | Bob      | bob@example.com   |\n| 3  | Charlie  | charlie@example.com |\n+----+----------+-----------+<\/code><\/pre>\n<p>\u5982\u679c\u6211\u5011\u60f3\u8981\u522a\u9664\u7528\u6236 <code>Bob<\/code> \u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\uff1a<\/p>\n<pre><code>DELETE FROM users WHERE Username = 'Bob';<\/code><\/pre>\n<p>\u57f7\u884c\u9019\u689d\u8a9e\u53e5\u5f8c\uff0c\u8868\u4e2d\u7684\u6578\u64da\u5c07\u8b8a\u70ba\uff1a<\/p>\n<pre><code>+----+----------+-----------+\n| ID | Username | Email     |\n+----+----------+-----------+\n| 1  | Alice    | alice@example.com |\n| 3  | Charlie  | charlie@example.com |\n+----+----------+-----------+<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-inUwVUBVBH\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li><strong>\u5099\u4efd\u6578\u64da\uff1a<\/strong>\u5728\u57f7\u884c\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u5099\u4efd\u6578\u64da\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u522a\u9664\u91cd\u8981\u4fe1\u606f\u3002<\/li>\n<li><strong>\u4f7f\u7528 WHERE \u5b50\u53e5\uff1a<\/strong>\u59cb\u7d42\u4f7f\u7528 <code>WHERE<\/code> \u5b50\u53e5\u4f86\u6307\u5b9a\u522a\u9664\u689d\u4ef6\uff0c\u5426\u5247\u5c07\u522a\u9664\u6574\u500b\u8868\u4e2d\u7684\u6240\u6709\u6578\u64da\u3002<\/li>\n<li><strong>\u6aa2\u67e5\u5f71\u97ff\u884c\u6578\uff1a<\/strong>\u5728\u57f7\u884c\u522a\u9664\u64cd\u4f5c\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>SELECT<\/code> \u8a9e\u53e5\u4f86\u6aa2\u67e5\u53d7\u5f71\u97ff\u7684\u884c\u6578\uff0c\u78ba\u4fdd\u64cd\u4f5c\u7684\u6b63\u78ba\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-inUwVUBVBH\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\u522a\u9664\u67d0\u4e00\u884c\u6578\u64da\u662f\u4e00\u9805\u57fa\u672c\u800c\u91cd\u8981\u7684\u64cd\u4f5c\u3002\u901a\u904e\u6b63\u78ba\u4f7f\u7528 <code>DELETE<\/code> \u8a9e\u53e5\uff0c\u4e26\u9075\u5faa\u6700\u4f73\u5be6\u8e10\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u3002\u7121\u8ad6\u662f\u5728\u958b\u767c\u74b0\u5883\u9084\u662f\u751f\u7522\u74b0\u5883\u4e2d\uff0c\u4e86\u89e3\u5982\u4f55\u5b89\u5168\u5730\u522a\u9664\u6578\u64da\u90fd\u662f\u6bcf\u4f4d\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u5fc5\u9808\u638c\u63e1\u7684\u6280\u80fd\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u548c\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u6e90\u548c\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u522a\u9664\u7279\u5b9a\u884c\u6578\u64da\u7684\u6b65\u9a5f\u8207\u6280\u5de7\uff0c\u78ba\u4fdd\u6578\u64da\u7ba1\u7406\u7684\u6e96\u78ba\u6027\u8207\u6548\u7387\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-179864","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179864","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=179864"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179864\/revisions"}],"predecessor-version":[{"id":179865,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179864\/revisions\/179865"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179864"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179864"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179864"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}