{"id":21642,"date":"2024-01-02T12:53:23","date_gmt":"2024-01-02T12:53:23","guid":{"rendered":"https:\/\/server.hk\/blog\/21642\/"},"modified":"2024-11-14T10:29:21","modified_gmt":"2024-11-14T02:29:21","slug":"how-to-fix-mongodb-error-code-48-namespaceexists","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21642\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3\u78bc – 48 – NamespaceExists"},"content":{"rendered":"

\u5982\u4f55\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3\u78bc – 48 – NamespaceExists<\/h1>\n

MongoDB \u662f\u4e00\u6b3e\u53d7\u6b61\u8fce\u7684\u958b\u6e90 NoSQL \u6578\u64da\u5eab\uff0c\u5177\u5099\u9ad8\u6548\u80fd\u3001\u53ef\u64f4\u5c55\u6027\u548c\u9748\u6d3b\u6027\u3002\u7136\u800c\uff0c\u8207\u6240\u6709\u8edf\u4ef6\u4e00\u6a23\uff0c\u5b83\u4e5f\u53ef\u80fd\u9047\u5230\u9700\u8981\u89e3\u6c7a\u7684\u932f\u8aa4\u3002\u5176\u4e2d\u4e00\u500b\u932f\u8aa4\u662f MongoDB \u932f\u8aa4\u4ee3\u78bc – 48 – NamespaceExists\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u4e00\u932f\u8aa4\u7684\u542b\u7fa9\u53ca\u5176\u4fee\u5fa9\u65b9\u6cd5\u3002<\/p>\n

\u7406\u89e3 MongoDB \u932f\u8aa4\u4ee3\u78bc – 48 – NamespaceExists<\/h2>\n

\u7576\u60a8\u5617\u8a66\u5275\u5efa\u4e00\u500b\u540d\u7a31\u5df2\u5b58\u5728\u7684\u65b0\u96c6\u5408\u6216\u6578\u64da\u5eab\u6642\uff0c\u6703\u767c\u751f MongoDB \u932f\u8aa4\u4ee3\u78bc – 48 – NamespaceExists\u3002MongoDB \u4f7f\u7528\u547d\u540d\u7a7a\u9593\u4f86\u552f\u4e00\u8b58\u5225\u96c6\u5408\u548c\u6578\u64da\u5eab\u3002\u547d\u540d\u7a7a\u9593\u662f\u6578\u64da\u5eab\u540d\u7a31\u548c\u96c6\u5408\u540d\u7a31\u7684\u7d44\u5408\uff0c\u5169\u8005\u4e4b\u9593\u4ee5\u9ede\u865f\u5206\u9694\u3002<\/p>\n

\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u5617\u8a66\u5728 “mydb” \u6578\u64da\u5eab\u4e2d\u5275\u5efa\u4e00\u500b\u540d\u70ba “users” \u7684\u96c6\u5408\uff0cMongoDB \u5c07\u5275\u5efa\u4e00\u500b\u540d\u70ba “mydb.users” \u7684\u547d\u540d\u7a7a\u9593\u3002\u5982\u679c\u5df2\u5b58\u5728\u540c\u540d\u7684\u547d\u540d\u7a7a\u9593\uff0cMongoDB \u5c31\u6703\u62cb\u51fa NamespaceExists \u932f\u8aa4\u3002<\/p>\n

\u89e3\u6c7a MongoDB \u932f\u8aa4\u4ee3\u78bc – 48 – NamespaceExists<\/h2>\n

\u8981\u4fee\u5fa9 NamespaceExists \u932f\u8aa4\uff0c\u60a8\u6709\u5e7e\u500b\u9078\u64c7\uff1a<\/p>\n

1. \u9078\u64c7\u4e0d\u540c\u7684\u540d\u7a31<\/h3>\n

\u6700\u7c21\u55ae\u7684\u89e3\u6c7a\u65b9\u6848\u662f\u70ba\u60a8\u7684\u96c6\u5408\u6216\u6578\u64da\u5eab\u9078\u64c7\u4e00\u500b\u4e0d\u540c\u7684\u540d\u7a31\u3002\u78ba\u4fdd\u65b0\u540d\u7a31\u662f\u7368\u7279\u7684\uff0c\u4e26\u4e14\u4e0d\u8207\u60a8 MongoDB \u5be6\u4f8b\u4e2d\u4efb\u4f55\u73fe\u6709\u7684\u547d\u540d\u7a7a\u9593\u7522\u751f\u885d\u7a81\u3002<\/p>\n

2. \u522a\u9664\u73fe\u6709\u7684\u547d\u540d\u7a7a\u9593<\/h3>\n

\u5982\u679c\u60a8\u4e0d\u518d\u9700\u8981\u73fe\u6709\u7684\u547d\u540d\u7a7a\u9593\uff0c\u53ef\u4ee5\u4f7f\u7528 drop()<\/code> \u65b9\u6cd5\u5c07\u5176\u522a\u9664\u3002\u4f8b\u5982\uff0c\u8981\u522a\u9664 “mydb” \u6578\u64da\u5eab\u4e2d\u7684 “users” \u96c6\u5408\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n

db.users.drop()<\/code><\/pre>\n
\u5728\u4f7f\u7528\u6b64\u65b9\u6cd5\u6642\u8acb\u8b39\u614e\uff0c\u56e0\u70ba\u5b83\u6703\u6c38\u4e45\u522a\u9664\u8a72\u96c6\u5408\u53ca\u5176\u6240\u6709\u6578\u64da\u3002<\/p>\n
3. \u91cd\u65b0\u547d\u540d\u73fe\u6709\u7684\u547d\u540d\u7a7a\u9593<\/h3>\n
\u5982\u679c\u60a8\u5e0c\u671b\u4fdd\u7559\u73fe\u6709\u7684\u547d\u540d\u7a7a\u9593\uff0c\u4f46\u60f3\u8981\u4f7f\u7528\u4e0d\u540c\u7684\u540d\u7a31\uff0c\u53ef\u4ee5\u4f7f\u7528 renameCollection()<\/code> \u65b9\u6cd5\u9032\u884c\u91cd\u547d\u540d\u3002\u4f8b\u5982\uff0c\u8981\u5c07 “mydb” \u6578\u64da\u5eab\u4e2d\u7684 “users” \u96c6\u5408\u91cd\u547d\u540d\u70ba “newusers”\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
db.users.renameCollection(\"mydb.newusers\")<\/code><\/pre>\n
\u6b64\u65b9\u6cd5\u53ef\u8b93\u60a8\u5728\u4fdd\u6301\u96c6\u5408\u6578\u64da\u7684\u540c\u6642\uff0c\u70ba\u5176\u66f4\u6539\u540d\u7a31\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u7576\u60a8\u5617\u8a66\u5275\u5efa\u4e00\u500b\u540d\u7a31\u5df2\u5b58\u5728\u7684\u65b0\u96c6\u5408\u6216\u6578\u64da\u5eab\u6642\uff0c\u6703\u767c\u751f MongoDB \u932f\u8aa4\u4ee3\u78bc – 48 – NamespaceExists\u3002\u8981\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u60a8\u53ef\u4ee5\u9078\u64c7\u4e0d\u540c\u7684\u540d\u7a31\u3001\u522a\u9664\u73fe\u6709\u7684\u547d\u540d\u7a7a\u9593\uff0c\u6216\u91cd\u65b0\u547d\u540d\u73fe\u6709\u7684\u547d\u540d\u7a7a\u9593\u3002\u6309\u7167\u9019\u4e9b\u6b65\u9a5f\uff0c\u60a8\u53ef\u4ee5\u9806\u5229\u89e3\u6c7a NamespaceExists \u932f\u8aa4\uff0c\u7e7c\u7e8c\u4f7f\u7528 MongoDB\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5982\u679c\u60a8\u9047\u5230 MongoDB \u932f\u8aa4\u4ee3\u78bc – 48 – NamespaceExists\uff0c\u53ef\u4ee5\u901a\u904e\u5e7e\u7a2e\u65b9\u6cd5\u9032\u884c\u4fee\u5fa9\u3002\u60a8\u53ef\u4ee5\u9078\u64c7\u4e0d\u540c\u7684\u540d\u7a31\u3001\u522a\u9664\u73fe\u6709\u7684\u547d\u540d\u7a7a\u9593\uff0c\u6216\u91cd\u65b0\u547d\u540d\u73fe\u6709\u7684\u547d\u540d\u7a7a\u9593\u3002\u6b32\u4e86\u89e3\u6709\u95dc MongoDB \u53ca\u5176\u932f\u8aa4\u4ee3\u78bc\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5982\u4f55\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-21642","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21642","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=21642"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21642\/revisions"}],"predecessor-version":[{"id":23780,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21642\/revisions\/23780"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21642"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21642"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}