{"id":20783,"date":"2024-01-02T05:52:21","date_gmt":"2024-01-02T05:52:21","guid":{"rendered":"https:\/\/server.hk\/blog\/20783\/"},"modified":"2024-11-14T10:38:45","modified_gmt":"2024-11-14T02:38:45","slug":"postgresql-command-drop-server","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/20783\/","title":{"rendered":"PostgreSQL \u547d\u4ee4\uff1aDROP SERVER"},"content":{"rendered":"<h1 id=\"postgresql-command-drop-server-aurLsoUMtw\">PostgreSQL \u547d\u4ee4\uff1aDROP SERVER<\/h1>\n<p>PostgreSQL \u662f\u4e00\u500b\u529f\u80fd\u5f37\u5927\u7684\u958b\u6e90\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u5ee3\u6cdb\u7684\u529f\u80fd\u548c\u7279\u6027\u3002PostgreSQL \u4e2d\u7684\u4e00\u500b\u91cd\u8981\u547d\u4ee4\u662f DROP SERVER \u547d\u4ee4\uff0c\u8a72\u547d\u4ee4\u5141\u8a31\u7528\u6236\u5f9e\u6578\u64da\u5eab\u4e2d\u79fb\u9664\u5916\u90e8\u670d\u52d9\u5668\u3002<\/p>\n<h2 id=\"understanding-drop-server-aurLsoUMtw\">\u4e86\u89e3 DROP SERVER<\/h2>\n<p>PostgreSQL \u4e2d\u7684 DROP SERVER \u547d\u4ee4\u7528\u65bc\u522a\u9664\u5148\u524d\u4f7f\u7528 CREATE SERVER \u547d\u4ee4\u5275\u5efa\u7684\u5916\u90e8\u670d\u52d9\u5668\u3002\u5916\u90e8\u670d\u52d9\u5668\u662f\u6307\u4e0d\u5c6c\u65bc\u7576\u524d\u6578\u64da\u5eab\u7684\u670d\u52d9\u5668\uff0c\u4f46\u53ef\u4ee5\u901a\u904e PostgreSQL \u6578\u64da\u5eab\u670d\u52d9\u5668\u9032\u884c\u8a2a\u554f\u3002<\/p>\n<p>\u5728 PostgreSQL \u4e2d\uff0c\u5916\u90e8\u670d\u52d9\u5668\u901a\u5e38\u7528\u65bc\u5efa\u7acb\u8207\u5176\u4ed6\u6578\u64da\u5eab\u6216\u7cfb\u7d71\u7684\u9023\u63a5\uff0c\u5141\u8a31\u7528\u6236\u8a2a\u554f\u4e26\u64cd\u4f5c\u5916\u90e8\u4f86\u6e90\u7684\u6578\u64da\u3002\u7136\u800c\uff0c\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u5916\u90e8\u670d\u52d9\u5668\u53ef\u80fd\u4e0d\u518d\u9700\u8981\u6216\u9700\u8981\u88ab\u66ff\u63db\uff0c\u6b64\u6642\u5c31\u9700\u8981\u4f7f\u7528 DROP SERVER \u547d\u4ee4\u3002<\/p>\n<h2 id=\"syntax-aurLsoUMtw\">\u8a9e\u6cd5<\/h2>\n<p>DROP SERVER \u547d\u4ee4\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>DROP SERVER [ IF EXISTS ] server_name [ CASCADE | RESTRICT ];\r\n<\/code><\/pre>\n<p>\u6211\u5011\u4f86\u89e3\u6790\u4e00\u4e0b\u8a9e\u6cd5\uff1a<\/p>\n<ul>\n<li><code>IF EXISTS<\/code>\uff08\u53ef\u9078\uff09\uff1a\u6b64\u5b50\u53e5\u5141\u8a31\u5373\u4f7f\u6307\u5b9a\u7684\u670d\u52d9\u5668\u4e0d\u5b58\u5728\uff0c\u547d\u4ee4\u4e5f\u53ef\u4ee5\u6210\u529f\u57f7\u884c\uff0c\u5f9e\u800c\u9632\u6b62\u62cb\u51fa\u932f\u8aa4\u3002<\/li>\n<li><code>server_name<\/code>\uff1a\u9019\u662f\u60a8\u60f3\u8981\u522a\u9664\u7684\u5916\u90e8\u670d\u52d9\u5668\u540d\u7a31\u3002<\/li>\n<li><code>CASCADE | RESTRICT<\/code>\uff08\u53ef\u9078\uff09\uff1a\u9019\u662f\u5169\u7a2e\u8655\u7406\u4f9d\u8cf4\u5c0d\u8c61\u7684\u9078\u9805\u3002\u82e5\u6307\u5b9a <code>CASCADE<\/code>\uff0c\u6240\u6709\u4f9d\u8cf4\u65bc\u8a72\u5916\u90e8\u670d\u52d9\u5668\u7684\u5c0d\u8c61\u4e5f\u5c07\u4e00\u4f75\u522a\u9664\u3002\u82e5\u6307\u5b9a <code>RESTRICT<\/code>\uff0c\u82e5\u5b58\u5728\u4f9d\u8cf4\u5c0d\u8c61\uff0c\u5247\u547d\u4ee4\u5c07\u5931\u6557\u3002<\/li>\n<\/ul>\n<h2 id=\"examples-aurLsoUMtw\">\u7bc4\u4f8b<\/h2>\n<p>\u6211\u5011\u4f86\u770b\u770b\u5e7e\u500b\u7bc4\u4f8b\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u4e86\u89e3 DROP SERVER \u547d\u4ee4\u7684\u904b\u4f5c\u65b9\u5f0f\uff1a<\/p>\n<p><strong>\u7bc4\u4f8b 1\uff1a<\/strong><\/p>\n<pre><code>DROP SERVER my_server;\r\n<\/code><\/pre>\n<p>\u5728\u6b64\u7bc4\u4f8b\u4e2d\uff0c\u547d\u4ee4\u5c07\u5f9e\u6578\u64da\u5eab\u4e2d\u522a\u9664\u540d\u70ba &#8220;my_server&#8221; \u7684\u5916\u90e8\u670d\u52d9\u5668\u3002\u5982\u679c\u8a72\u670d\u52d9\u5668\u4e0d\u5b58\u5728\uff0c\u5c07\u62cb\u51fa\u932f\u8aa4\u3002<\/p>\n<p><strong>\u7bc4\u4f8b 2\uff1a<\/strong><\/p>\n<pre><code>DROP SERVER IF EXISTS my_server CASCADE;\r\n<\/code><\/pre>\n<p>\u6b64\u7bc4\u4f8b\u5c55\u793a\u4e86 <code>IF EXISTS<\/code> \u5b50\u53e5\u7684\u4f7f\u7528\u3002\u5982\u679c\u5916\u90e8\u670d\u52d9\u5668 &#8220;my_server&#8221; \u5b58\u5728\uff0c\u5247\u5c07\u5176\u8207\u6240\u6709\u4f9d\u8cf4\u5c0d\u8c61\u4e00\u8d77\u522a\u9664\u3002\u5982\u679c\u5b83\u4e0d\u5b58\u5728\uff0c\u5247\u547d\u4ee4\u5c07\u6210\u529f\u57f7\u884c\u800c\u4e0d\u62cb\u51fa\u932f\u8aa4\u3002<\/p>\n<h2 id=\"summary-aurLsoUMtw\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL \u4e2d\u7684 DROP SERVER \u547d\u4ee4\u5141\u8a31\u7528\u6236\u5f9e\u6578\u64da\u5eab\u4e2d\u79fb\u9664\u5916\u90e8\u670d\u52d9\u5668\u3002\u7576\u4e0d\u518d\u9700\u8981\u5916\u90e8\u670d\u52d9\u5668\u6216\u9700\u8981\u66ff\u63db\u6642\uff0c\u9019\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u547d\u4ee4\u3002\u901a\u904e\u4f7f\u7528\u5408\u9069\u7684\u8a9e\u6cd5\u548c\u9078\u9805\uff0c\u7528\u6236\u53ef\u4ee5\u522a\u9664\u670d\u52d9\u5668\u4e26\u6839\u64da\u9700\u8981\u8655\u7406\u4f9d\u8cf4\u5c0d\u8c61\u3002<\/p>\n<p>\u5982\u679c\u60a8\u60f3\u4e86\u89e3\u66f4\u591a\u6709\u95dc VPS \u8a17\u7ba1\u548c PostgreSQL \u7684\u4fe1\u606f\uff0c\u8acb\u8003\u616e\u63a2\u7d22 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\u3002\u4ed6\u5011\u63d0\u4f9b\u53ef\u9760\u7684 VPS \u8a17\u7ba1\u89e3\u6c7a\u65b9\u6848\uff0c\u4e26\u4e14\u5177\u6709\u51fa\u8272\u7684\u6027\u80fd\u548c\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PostgreSQL \u547d\u4ee4\uff1aDR&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-20783","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/20783","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=20783"}],"version-history":[{"count":2,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/20783\/revisions"}],"predecessor-version":[{"id":24317,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/20783\/revisions\/24317"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=20783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=20783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=20783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}