{"id":178860,"date":"2024-11-08T21:30:21","date_gmt":"2024-11-08T13:30:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178860\/"},"modified":"2024-11-08T21:30:22","modified_gmt":"2024-11-08T13:30:22","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9postgresql%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a2bp01-dependent_objects_still_exist%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178860\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a2BP01 &#8211; dependent_objects_still_exist\uff1f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9postgresql%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a2bp01-dependent_objects_still_exist-wykKYDlWaX\">\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a2BP01 &#8211; dependent_objects_still_exist<\/h1>\n<p>\u5728\u4f7f\u7528PostgreSQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\u3002\u5176\u4e2d\uff0c\u932f\u8aa4\u4ee3\u78bc <code>2BP01<\/code> \u8868\u793a\u300cdependent_objects_still_exist\u300d\uff0c\u9019\u610f\u5473\u8457\u5728\u5617\u8a66\u522a\u9664\u67d0\u500b\u5c0d\u8c61\uff08\u5982\u8868\u3001\u8996\u5716\u6216\u7d22\u5f15\uff09\u6642\uff0c\u8a72\u5c0d\u8c61\u4ecd\u7136\u6709\u4f9d\u8cf4\u7684\u5c0d\u8c61\u5b58\u5728\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u4fee\u5fa9\u9019\u4e00\u932f\u8aa4\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e7%90%86%e8%a7%a3%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc-2bp01-wykKYDlWaX\">\u7406\u89e3\u932f\u8aa4\u4ee3\u78bc 2BP01<\/h2>\n<p>\u7576\u4f60\u5617\u8a66\u522a\u9664\u4e00\u500b\u5c0d\u8c61\u6642\uff0cPostgreSQL \u6703\u6aa2\u67e5\u8a72\u5c0d\u8c61\u662f\u5426\u6709\u5176\u4ed6\u5c0d\u8c61\u4f9d\u8cf4\u65bc\u5b83\u3002\u5982\u679c\u5b58\u5728\u4f9d\u8cf4\uff0c\u5247\u6703\u8fd4\u56de\u932f\u8aa4\u4ee3\u78bc <code>2BP01<\/code>\u3002\u9019\u7a2e\u60c5\u6cc1\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\u4e0b\uff1a<\/p>\n<ul>\n<li>\u522a\u9664\u7684\u5c0d\u8c61\u662f\u5176\u4ed6\u5c0d\u8c61\u7684\u5916\u9375\u53c3\u8003\u3002<\/li>\n<li>\u522a\u9664\u7684\u5c0d\u8c61\u662f\u8996\u5716\u6216\u51fd\u6578\u7684\u57fa\u790e\u8868\u3002<\/li>\n<li>\u5b58\u5728\u89f8\u767c\u5668\u6216\u5176\u4ed6\u4f9d\u8cf4\u65bc\u8a72\u5c0d\u8c61\u7684\u6578\u64da\u5eab\u5c0d\u8c61\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%aa%a2%e6%9f%a5%e4%be%9d%e8%b3%b4%e9%97%9c%e4%bf%82-wykKYDlWaX\">\u6aa2\u67e5\u4f9d\u8cf4\u95dc\u4fc2<\/h2>\n<p>\u5728\u4fee\u5fa9\u6b64\u932f\u8aa4\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u6aa2\u67e5\u54ea\u4e9b\u5c0d\u8c61\u4f9d\u8cf4\u65bc\u4f60\u60f3\u8981\u522a\u9664\u7684\u5c0d\u8c61\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u67e5\u627e\u4f9d\u8cf4\u95dc\u4fc2\uff1a<\/p>\n<pre><code>SELECT \n    dependent.nspname AS dependent_schema,\n    dependent.relname AS dependent_object,\n    dependent.relkind AS dependent_type\nFROM \n    pg_catalog.pg_depend AS dep\nJOIN \n    pg_catalog.pg_class AS dependent ON dep.refobjid = dependent.oid\nJOIN \n    pg_catalog.pg_class AS referenced ON dep.objid = referenced.oid\nJOIN \n    pg_catalog.pg_namespace AS dependent_ns ON dependent.relnamespace = dependent_ns.oid\nJOIN \n    pg_catalog.pg_namespace AS referenced_ns ON referenced.relnamespace = referenced_ns.oid\nWHERE \n    referenced.relname = 'your_object_name' AND \n    referenced_ns.nspname = 'your_schema_name';\n<\/code><\/pre>\n<p>\u5c07 <code>your_object_name<\/code> \u548c <code>your_schema_name<\/code> \u66ff\u63db\u70ba\u4f60\u8981\u522a\u9664\u7684\u5c0d\u8c61\u540d\u7a31\u548c\u5176\u6240\u5c6c\u7684\u6a21\u5f0f\u540d\u7a31\u3002\u9019\u6a23\u53ef\u4ee5\u5217\u51fa\u6240\u6709\u4f9d\u8cf4\u65bc\u8a72\u5c0d\u8c61\u7684\u5c0d\u8c61\u3002<\/p>\n<h2 id=\"%e5%88%aa%e9%99%a4%e4%be%9d%e8%b3%b4%e5%b0%8d%e8%b1%a1-wykKYDlWaX\">\u522a\u9664\u4f9d\u8cf4\u5c0d\u8c61<\/h2>\n<p>\u4e00\u65e6\u78ba\u5b9a\u4e86\u4f9d\u8cf4\u5c0d\u8c61\uff0c\u4f60\u53ef\u4ee5\u9078\u64c7\u522a\u9664\u9019\u4e9b\u4f9d\u8cf4\u5c0d\u8c61\u3002\u8acb\u6ce8\u610f\uff0c\u522a\u9664\u4f9d\u8cf4\u5c0d\u8c61\u53ef\u80fd\u6703\u5f71\u97ff\u6578\u64da\u5eab\u7684\u5b8c\u6574\u6027\uff0c\u56e0\u6b64\u5728\u57f7\u884c\u6b64\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u5099\u4efd\u6578\u64da\u5eab\u3002<\/p>\n<pre><code>DROP TABLE dependent_object_name;\n<\/code><\/pre>\n<p>\u5728\u522a\u9664\u4f9d\u8cf4\u5c0d\u8c61\u5f8c\uff0c\u518d\u6b21\u5617\u8a66\u522a\u9664\u539f\u59cb\u5c0d\u8c61\u3002\u5982\u679c\u4e00\u5207\u9806\u5229\uff0c\u5247\u4e0d\u61c9\u518d\u51fa\u73fe\u932f\u8aa4\u4ee3\u78bc <code>2BP01<\/code>\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8cascade%e9%81%b8%e9%a0%85-wykKYDlWaX\">\u4f7f\u7528CASCADE\u9078\u9805<\/h2>\n<p>\u5982\u679c\u4f60\u5e0c\u671b\u5728\u522a\u9664\u5c0d\u8c61\u6642\u81ea\u52d5\u522a\u9664\u6240\u6709\u4f9d\u8cf4\u65bc\u8a72\u5c0d\u8c61\u7684\u5c0d\u8c61\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>CASCADE<\/code> \u9078\u9805\u3002\u9019\u6a23\u505a\u6703\u81ea\u52d5\u522a\u9664\u6240\u6709\u4f9d\u8cf4\u5c0d\u8c61\uff0c\u800c\u4e0d\u9700\u8981\u624b\u52d5\u522a\u9664\u5b83\u5011\uff1a<\/p>\n<pre><code>DROP TABLE your_object_name CASCADE;\n<\/code><\/pre>\n<p>\u7136\u800c\uff0c\u4f7f\u7528 <code>CASCADE<\/code> \u9700\u8981\u8b39\u614e\uff0c\u56e0\u70ba\u9019\u5c07\u522a\u9664\u6240\u6709\u76f8\u95dc\u7684\u5c0d\u8c61\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-wykKYDlWaX\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL \u932f\u8aa4\u4ee3\u78bc <code>2BP01<\/code> \u901a\u5e38\u662f\u7531\u65bc\u5c0d\u8c61\u4e4b\u9593\u7684\u4f9d\u8cf4\u95dc\u4fc2\u9020\u6210\u7684\u3002\u901a\u904e\u6aa2\u67e5\u4f9d\u8cf4\u95dc\u4fc2\u3001\u522a\u9664\u4f9d\u8cf4\u5c0d\u8c61\u6216\u4f7f\u7528 <code>CASCADE<\/code> \u9078\u9805\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5728\u9032\u884c\u4efb\u4f55\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\uff0c\u52d9\u5fc5\u5099\u4efd\u6578\u64da\u5eab\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u6578\u64da\u4e1f\u5931\u3002<\/p>\n<p>\u5982\u679c\u4f60\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\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u7db2\u7ad9\u6258\u7ba1\uff0c\u6211\u5011\u7684\u670d\u52d9\u90fd\u80fd\u70ba\u4f60\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc2BP01\uff0c\u89e3\u6c7a\u4f9d\u8cf4\u5c0d\u8c61\u4ecd\u7136\u5b58\u5728\u7684\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u6b63\u5e38\u904b\u884c\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-178860","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178860","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=178860"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178860\/revisions"}],"predecessor-version":[{"id":178861,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178860\/revisions\/178861"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178860"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178860"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178860"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}