{"id":168497,"date":"2024-11-06T12:52:26","date_gmt":"2024-11-06T04:52:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/168497\/"},"modified":"2024-11-06T12:52:27","modified_gmt":"2024-11-06T04:52:27","slug":"sql-%e4%b8%ad-drop-%e5%88%aa%e9%99%a4%e8%a1%a8%e5%91%bd%e4%bb%a4%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/168497\/","title":{"rendered":"SQL \u4e2d Drop \u522a\u9664\u8868\u547d\u4ee4\u89e3\u6790"},"content":{"rendered":"<h1 id=\"sql-%e4%b8%ad-drop-%e5%88%aa%e9%99%a4%e8%a1%a8%e5%91%bd%e4%bb%a4%e8%a7%a3%e6%9e%90-MycRWyxNED\">SQL \u4e2d Drop \u522a\u9664\u8868\u547d\u4ee4\u89e3\u6790<\/h1>\n<p>\u5728 SQL \u4e2d\uff0c<code>DROP<\/code> \u547d\u4ee4\u662f\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u6307\u4ee4\uff0c\u4e3b\u8981\u7528\u65bc\u522a\u9664\u8cc7\u6599\u5eab\u4e2d\u7684\u8868\u683c\u3001\u8cc7\u6599\u5eab\u6216\u5176\u4ed6\u7269\u4ef6\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0e <code>DROP<\/code> \u547d\u4ee4\u7684\u4f7f\u7528\u65b9\u6cd5\u3001\u6ce8\u610f\u4e8b\u9805\u4ee5\u53ca\u4e00\u4e9b\u5be6\u969b\u7bc4\u4f8b\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u9019\u500b\u547d\u4ee4\u7684\u529f\u80fd\u548c\u5f71\u97ff\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-drop-%e5%91%bd%e4%bb%a4%ef%bc%9f-MycRWyxNED\">\u4ec0\u9ebc\u662f DROP \u547d\u4ee4\uff1f<\/h2>\n<p><code>DROP<\/code> \u547d\u4ee4\u7528\u65bc\u6c38\u4e45\u522a\u9664\u8cc7\u6599\u5eab\u4e2d\u7684\u7269\u4ef6\u3002\u7576\u4f60\u57f7\u884c <code>DROP<\/code> \u547d\u4ee4\u6642\uff0c\u8a72\u7269\u4ef6\u53ca\u5176\u6240\u6709\u8cc7\u6599\u5c07\u88ab\u6c38\u4e45\u522a\u9664\uff0c\u7121\u6cd5\u6062\u5fa9\u3002\u56e0\u6b64\uff0c\u5728\u4f7f\u7528\u6b64\u547d\u4ee4\u4e4b\u524d\uff0c\u52d9\u5fc5\u78ba\u8a8d\u4f60\u4e0d\u518d\u9700\u8981\u8a72\u7269\u4ef6\u7684\u8cc7\u6599\u3002<\/p>\n<h2 id=\"drop-%e5%91%bd%e4%bb%a4%e7%9a%84%e8%aa%9e%e6%b3%95-MycRWyxNED\">DROP \u547d\u4ee4\u7684\u8a9e\u6cd5<\/h2>\n<p>\u5728 SQL \u4e2d\uff0c<code>DROP<\/code> \u547d\u4ee4\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>DROP TABLE \u8868\u540d;<\/code><\/pre>\n<p>\u9019\u88e1\u7684 <code>\u8868\u540d<\/code> \u662f\u4f60\u60f3\u8981\u522a\u9664\u7684\u8868\u683c\u540d\u7a31\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u7528\u6cd5\uff1a<\/p>\n<h3 id=\"%e5%88%aa%e9%99%a4%e5%96%ae%e5%80%8b%e8%a1%a8%e6%a0%bc-MycRWyxNED\">\u522a\u9664\u55ae\u500b\u8868\u683c<\/h3>\n<pre><code>DROP TABLE customers;<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u5c07\u522a\u9664\u540d\u70ba <code>customers<\/code> \u7684\u8868\u683c\u53ca\u5176\u6240\u6709\u8cc7\u6599\u3002<\/p>\n<h3 id=\"%e5%88%aa%e9%99%a4%e5%a4%9a%e5%80%8b%e8%a1%a8%e6%a0%bc-MycRWyxNED\">\u522a\u9664\u591a\u500b\u8868\u683c<\/h3>\n<p>\u5982\u679c\u9700\u8981\u540c\u6642\u522a\u9664\u591a\u500b\u8868\u683c\uff0c\u53ef\u4ee5\u4f7f\u7528\u9017\u865f\u5206\u9694\u8868\u683c\u540d\u7a31\uff1a<\/p>\n<pre><code>DROP TABLE orders, products;<\/code><\/pre>\n<p>\u9019\u5c07\u540c\u6642\u522a\u9664 <code>orders<\/code> \u548c <code>products<\/code> \u5169\u500b\u8868\u683c\u3002<\/p>\n<h3 id=\"%e5%88%aa%e9%99%a4%e8%b3%87%e6%96%99%e5%ba%ab-MycRWyxNED\">\u522a\u9664\u8cc7\u6599\u5eab<\/h3>\n<p>\u9664\u4e86\u522a\u9664\u8868\u683c\uff0c<code>DROP<\/code> \u547d\u4ee4\u9084\u53ef\u4ee5\u7528\u4f86\u522a\u9664\u6574\u500b\u8cc7\u6599\u5eab\uff0c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>DROP DATABASE \u8cc7\u6599\u5eab\u540d;<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><code>DROP DATABASE sales_db;<\/code><\/pre>\n<p>\u9019\u5c07\u522a\u9664\u540d\u70ba <code>sales_db<\/code> \u7684\u6574\u500b\u8cc7\u6599\u5eab\u53ca\u5176\u6240\u6709\u8868\u683c\u548c\u8cc7\u6599\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-drop-%e5%91%bd%e4%bb%a4%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-MycRWyxNED\">\u4f7f\u7528 DROP \u547d\u4ee4\u7684\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li><strong>\u4e0d\u53ef\u6062\u5fa9\u6027\uff1a<\/strong>\u57f7\u884c <code>DROP<\/code> \u547d\u4ee4\u5f8c\uff0c\u8cc7\u6599\u5c07\u7121\u6cd5\u6062\u5fa9\uff0c\u56e0\u6b64\u5728\u57f7\u884c\u6b64\u547d\u4ee4\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u5099\u4efd\u8cc7\u6599\u3002<\/li>\n<li><strong>\u6b0a\u9650\u8981\u6c42\uff1a<\/strong>\u57f7\u884c <code>DROP<\/code> \u547d\u4ee4\u9700\u8981\u76f8\u61c9\u7684\u6b0a\u9650\uff0c\u901a\u5e38\u53ea\u6709\u8cc7\u6599\u5eab\u7684\u64c1\u6709\u8005\u6216\u7ba1\u7406\u54e1\u624d\u80fd\u57f7\u884c\u6b64\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u4f9d\u8cf4\u6027\u554f\u984c\uff1a<\/strong>\u5982\u679c\u5176\u4ed6\u8868\u683c\u6216\u7269\u4ef6\u4f9d\u8cf4\u65bc\u4f60\u8981\u522a\u9664\u7684\u8868\u683c\uff0c\u5247\u53ef\u80fd\u6703\u5c0e\u81f4\u932f\u8aa4\u3002\u5728\u522a\u9664\u4e4b\u524d\uff0c\u61c9\u6aa2\u67e5\u4f9d\u8cf4\u95dc\u4fc2\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e7%af%84%e4%be%8b-MycRWyxNED\">\u5be6\u969b\u7bc4\u4f8b<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>employees<\/code> \u7684\u8868\u683c\uff0c\u88e1\u9762\u5b58\u5132\u4e86\u54e1\u5de5\u7684\u8cc7\u6599\u3002\u5982\u679c\u6211\u5011\u78ba\u5b9a\u4e0d\u518d\u9700\u8981\u9019\u500b\u8868\u683c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u522a\u9664\u5b83\uff1a<\/p>\n<pre><code>DROP TABLE employees;<\/code><\/pre>\n<p>\u57f7\u884c\u5f8c\uff0c<code>employees<\/code> \u8868\u683c\u53ca\u5176\u6240\u6709\u8cc7\u6599\u5c07\u88ab\u6c38\u4e45\u522a\u9664\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-MycRWyxNED\">\u7e3d\u7d50<\/h2>\n<p>\u5728 SQL \u4e2d\uff0c<code>DROP<\/code> \u547d\u4ee4\u662f\u4e00\u500b\u5f37\u5927\u4e14\u5371\u96aa\u7684\u5de5\u5177\uff0c\u80fd\u5920\u6c38\u4e45\u522a\u9664\u8cc7\u6599\u5eab\u4e2d\u7684\u8868\u683c\u548c\u8cc7\u6599\u3002\u4f7f\u7528\u6b64\u547d\u4ee4\u6642\uff0c\u52d9\u5fc5\u5c0f\u5fc3\uff0c\u4e26\u78ba\u4fdd\u5df2\u7d93\u505a\u597d\u8cc7\u6599\u5099\u4efd\u3002\u4e86\u89e3 <code>DROP<\/code> \u547d\u4ee4\u7684\u6b63\u78ba\u7528\u6cd5\u548c\u6ce8\u610f\u4e8b\u9805\uff0c\u5c07\u6709\u52a9\u65bc\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8cc7\u6599\u640d\u5931\u3002<\/p>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f\u500b\u4eba\u9084\u662f\u4f01\u696d\u7528\u6236\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u670d\u52d9\u90fd\u80fd\u70ba\u4f60\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u89e3\u6790 SQL \u4e2d\u7684 DROP \u547d\u4ee4\uff0c\u4e86\u89e3\u5982\u4f55\u5b89\u5168\u6709\u6548\u5730\u522a\u9664\u8cc7\u6599\u8868\u53ca\u5176\u5f71\u97ff\uff0c\u78ba\u4fdd\u6578\u64da\u7ba1\u7406\u7684\u6700\u4f73\u5be6\u8e10\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-168497","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168497","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=168497"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168497\/revisions"}],"predecessor-version":[{"id":168498,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168497\/revisions\/168498"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=168497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=168497"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=168497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}