{"id":160787,"date":"2024-11-04T01:00:28","date_gmt":"2024-11-03T17:00:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160787\/"},"modified":"2024-11-04T01:00:29","modified_gmt":"2024-11-03T17:00:29","slug":"%e8%b3%87%e6%96%99%e5%ba%ab%e6%95%99%e7%a8%8b%ef%bc%9amysql-%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%e8%a1%a8%ef%bc%88drop-table-%e8%aa%9e%e5%8f%a5%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160787\/","title":{"rendered":"\u8cc7\u6599\u5eab\u6559\u7a0b\uff1aMySQL \u522a\u9664\u6578\u64da\u8868\uff08DROP TABLE \u8a9e\u53e5\uff09"},"content":{"rendered":"<h1 id=\"%e8%b3%87%e6%96%99%e5%ba%ab%e6%95%99%e7%a8%8b%ef%bc%9amysql-%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%e8%a1%a8%ef%bc%88drop-table-%e8%aa%9e%e5%8f%a5%ef%bc%89-pVQwIQCEar\">\u8cc7\u6599\u5eab\u6559\u7a0b\uff1aMySQL \u522a\u9664\u6578\u64da\u8868\uff08DROP TABLE \u8a9e\u53e5\uff09<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cMySQL \u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u3002\u7576\u6211\u5011\u9700\u8981\u522a\u9664\u4e0d\u518d\u4f7f\u7528\u7684\u6578\u64da\u8868\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>DROP TABLE<\/code> \u8a9e\u53e5\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0e <code>DROP TABLE<\/code> \u7684\u7528\u6cd5\u3001\u6ce8\u610f\u4e8b\u9805\u4ee5\u53ca\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-drop-table-%e8%aa%9e%e5%8f%a5%ef%bc%9f-pVQwIQCEar\">\u4ec0\u9ebc\u662f DROP TABLE \u8a9e\u53e5\uff1f<\/h2>\n<p><code>DROP TABLE<\/code> \u662f\u4e00\u500b SQL \u8a9e\u53e5\uff0c\u7528\u65bc\u6c38\u4e45\u522a\u9664\u6578\u64da\u5eab\u4e2d\u7684\u4e00\u500b\u6216\u591a\u500b\u6578\u64da\u8868\u53ca\u5176\u6240\u6709\u6578\u64da\u3002\u9019\u500b\u64cd\u4f5c\u662f\u4e0d\u53ef\u9006\u7684\uff0c\u4e00\u65e6\u57f7\u884c\uff0c\u6240\u6709\u7684\u6578\u64da\u5c07\u7121\u6cd5\u6062\u5fa9\u3002\u56e0\u6b64\uff0c\u5728\u4f7f\u7528\u6b64\u8a9e\u53e5\u4e4b\u524d\uff0c\u52d9\u5fc5\u78ba\u8a8d\u8a72\u6578\u64da\u8868\u4e0d\u518d\u9700\u8981\u3002<\/p>\n<h2 id=\"drop-table-%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-pVQwIQCEar\">DROP TABLE \u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<pre><code>DROP TABLE [IF EXISTS] table_name [, table_name2, ...];\n<\/code><\/pre>\n<ul>\n<li><code>IF EXISTS<\/code>\uff1a\u9019\u662f\u4e00\u500b\u53ef\u9078\u7684\u53c3\u6578\uff0c\u7528\u65bc\u907f\u514d\u5728\u5617\u8a66\u522a\u9664\u4e0d\u5b58\u5728\u7684\u8868\u6642\u51fa\u73fe\u932f\u8aa4\u3002<\/li>\n<li><code>table_name<\/code>\uff1a\u8981\u522a\u9664\u7684\u6578\u64da\u8868\u540d\u7a31\uff0c\u53ef\u4ee5\u4e00\u6b21\u522a\u9664\u591a\u500b\u8868\uff0c\u8868\u540d\u4e4b\u9593\u7528\u9017\u865f\u5206\u9694\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%a4%ba%e4%be%8b-pVQwIQCEar\">\u4f7f\u7528\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528 <code>DROP TABLE<\/code> \u8a9e\u53e5\u7684\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b-1%ef%bc%9a%e5%88%aa%e9%99%a4%e5%96%ae%e5%80%8b%e6%95%b8%e6%93%9a%e8%a1%a8-pVQwIQCEar\">\u793a\u4f8b 1\uff1a\u522a\u9664\u55ae\u500b\u6578\u64da\u8868<\/h3>\n<pre><code>DROP TABLE IF EXISTS users;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528 <code>IF EXISTS<\/code> \u4f86\u6aa2\u67e5 <code>users<\/code> \u8868\u662f\u5426\u5b58\u5728\u3002\u5982\u679c\u5b58\u5728\uff0c\u5247\u522a\u9664\u8a72\u8868\uff1b\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u5247\u4e0d\u6703\u5831\u932f\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b-2%ef%bc%9a%e5%88%aa%e9%99%a4%e5%a4%9a%e5%80%8b%e6%95%b8%e6%93%9a%e8%a1%a8-pVQwIQCEar\">\u793a\u4f8b 2\uff1a\u522a\u9664\u591a\u500b\u6578\u64da\u8868<\/h3>\n<pre><code>DROP TABLE IF EXISTS orders, products;\n<\/code><\/pre>\n<p>\u9019\u500b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4e00\u6b21\u6027\u522a\u9664\u591a\u500b\u8868\u3002\u5728\u9019\u88e1\uff0c\u6211\u5011\u522a\u9664\u4e86 <code>orders<\/code> \u548c <code>products<\/code> \u5169\u500b\u8868\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-pVQwIQCEar\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li><strong>\u4e0d\u53ef\u9006\u64cd\u4f5c\uff1a<\/strong>\u57f7\u884c <code>DROP TABLE<\/code> \u5f8c\uff0c\u6240\u6709\u6578\u64da\u5c07\u6c38\u4e45\u4e1f\u5931\uff0c\u8acb\u52d9\u5fc5\u5728\u522a\u9664\u524d\u5099\u4efd\u91cd\u8981\u6578\u64da\u3002<\/li>\n<li><strong>\u5916\u9375\u7d04\u675f\uff1a<\/strong>\u5982\u679c\u8981\u522a\u9664\u7684\u8868\u8207\u5176\u4ed6\u8868\u5b58\u5728\u5916\u9375\u7d04\u675f\uff0c\u5247\u5fc5\u9808\u5148\u522a\u9664\u9019\u4e9b\u7d04\u675f\uff0c\u5426\u5247\u5c07\u7121\u6cd5\u522a\u9664\u8a72\u8868\u3002<\/li>\n<li><strong>\u6b0a\u9650\u554f\u984c\uff1a<\/strong>\u57f7\u884c <code>DROP TABLE<\/code> \u9700\u8981\u76f8\u61c9\u7684\u6b0a\u9650\uff0c\u78ba\u4fdd\u7528\u6236\u64c1\u6709\u8db3\u5920\u7684\u6b0a\u9650\u4f86\u57f7\u884c\u6b64\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-pVQwIQCEar\">\u7d50\u8ad6<\/h2>\n<p>\u5728 MySQL \u4e2d\uff0c<code>DROP TABLE<\/code> \u662f\u4e00\u500b\u5f37\u5927\u4e14\u91cd\u8981\u7684\u8a9e\u53e5\uff0c\u7528\u65bc\u7ba1\u7406\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u8868\u3002\u96d6\u7136\u5b83\u7684\u4f7f\u7528\u975e\u5e38\u7c21\u55ae\uff0c\u4f46\u7531\u65bc\u5176\u4e0d\u53ef\u9006\u6027\uff0c\u4f7f\u7528\u6642\u5fc5\u9808\u683c\u5916\u5c0f\u5fc3\u3002\u4e86\u89e3\u5982\u4f55\u6b63\u78ba\u4f7f\u7528 <code>DROP TABLE<\/code> \u8a9e\u53e5\uff0c\u5c07\u6709\u52a9\u65bc\u66f4\u6709\u6548\u5730\u7ba1\u7406\u60a8\u7684\u6578\u64da\u5eab\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u7528\u6236\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u500b\u4eba\u9805\u76ee\u9084\u662f\u4f01\u696d\u61c9\u7528\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528 MySQL \u7684 DROP TABLE \u8a9e\u53e5\u5b89\u5168\u5730\u522a\u9664\u6578\u64da\u8868\uff0c\u638c\u63e1\u8cc7\u6599\u5eab\u7ba1\u7406\u7684\u95dc\u9375\u6280\u5de7\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-160787","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160787","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=160787"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160787\/revisions"}],"predecessor-version":[{"id":160788,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160787\/revisions\/160788"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160787"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160787"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160787"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}