{"id":176119,"date":"2024-11-08T10:14:19","date_gmt":"2024-11-08T02:14:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/176119\/"},"modified":"2024-11-08T10:14:19","modified_gmt":"2024-11-08T02:14:19","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mongodb%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc-68-%e7%b4%a2%e5%bc%95%e5%b7%b2%e7%b6%93%e5%ad%98%e5%9c%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/176119\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc &#8211; 68 &#8211; \u7d22\u5f15\u5df2\u7d93\u5b58\u5728"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mongodb%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc-68-%e7%b4%a2%e5%bc%95%e5%b7%b2%e7%b6%93%e5%ad%98%e5%9c%a8-STZEnvRrmW\">\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc &#8211; 68 &#8211; \u7d22\u5f15\u5df2\u7d93\u5b58\u5728<\/h1>\n<p>\u5728\u4f7f\u7528MongoDB\u7684\u904e\u7a0b\u4e2d\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa4\u4ee3\u78bc68\uff0c\u8a72\u932f\u8aa4\u901a\u5e38\u8868\u793a\u201c\u7d22\u5f15\u5df2\u7d93\u5b58\u5728\u201d\u3002\u9019\u610f\u5473\u8457\u60a8\u5617\u8a66\u5275\u5efa\u7684\u7d22\u5f15\u5df2\u7d93\u5728\u6578\u64da\u5eab\u4e2d\u5b58\u5728\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u4e00\u932f\u8aa4\u7684\u539f\u56e0\u3001\u89e3\u6c7a\u65b9\u6848\u4ee5\u53ca\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406MongoDB\u4e2d\u7684\u7d22\u5f15\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc68%e7%9a%84%e5%8e%9f%e5%9b%a0-STZEnvRrmW\">\u932f\u8aa4\u4ee3\u78bc68\u7684\u539f\u56e0<\/h2>\n<p>\u7576\u60a8\u5728MongoDB\u4e2d\u5275\u5efa\u7d22\u5f15\u6642\uff0c\u7cfb\u7d71\u6703\u6aa2\u67e5\u8a72\u7d22\u5f15\u662f\u5426\u5df2\u7d93\u5b58\u5728\u3002\u5982\u679c\u60a8\u5617\u8a66\u5275\u5efa\u7684\u7d22\u5f15\u8207\u73fe\u6709\u7d22\u5f15\u7684\u540d\u7a31\u6216\u7d50\u69cb\u76f8\u540c\uff0c\u5247\u6703\u89f8\u767c\u932f\u8aa4\u4ee3\u78bc68\u3002\u9019\u7a2e\u60c5\u6cc1\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\u4e0b\uff1a<\/p>\n<ul>\n<li><strong>\u91cd\u8907\u7684\u7d22\u5f15\u540d\u7a31\uff1a<\/strong>\u5982\u679c\u60a8\u5728\u540c\u4e00\u96c6\u5408\u4e2d\u4f7f\u7528\u76f8\u540c\u7684\u7d22\u5f15\u540d\u7a31\uff0cMongoDB\u5c07\u7121\u6cd5\u5275\u5efa\u65b0\u7684\u7d22\u5f15\u3002<\/li>\n<li><strong>\u76f8\u540c\u7684\u7d22\u5f15\u7d50\u69cb\uff1a<\/strong>\u5373\u4f7f\u7d22\u5f15\u540d\u7a31\u4e0d\u540c\uff0c\u5982\u679c\u7d22\u5f15\u7684\u5b57\u6bb5\u548c\u6392\u5e8f\u65b9\u5f0f\u76f8\u540c\uff0c\u4e5f\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u6578\u64da\u5eab\u9077\u79fb\u6216\u6062\u5fa9\uff1a<\/strong>\u5728\u6578\u64da\u5eab\u9077\u79fb\u6216\u6062\u5fa9\u904e\u7a0b\u4e2d\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u7d22\u5f15\u91cd\u8907\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc68-STZEnvRrmW\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa4\u4ee3\u78bc68<\/h2>\n<p>\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc68\u7684\u65b9\u6cd5\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u7a2e\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e7%8f%be%e6%9c%89%e7%b4%a2%e5%bc%95-STZEnvRrmW\">1. \u6aa2\u67e5\u73fe\u6709\u7d22\u5f15<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u6aa2\u67e5\u7576\u524d\u96c6\u5408\u4e2d\u5df2\u5b58\u5728\u7684\u7d22\u5f15\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u5217\u51fa\u6240\u6709\u7d22\u5f15\uff1a<\/p>\n<pre><code>db.collection.getIndexes()<\/code><\/pre>\n<p>\u9019\u5c07\u986f\u793a\u8a72\u96c6\u5408\u4e2d\u6240\u6709\u7684\u7d22\u5f15\u53ca\u5176\u8a73\u7d30\u4fe1\u606f\u3002\u901a\u904e\u9019\u4e9b\u4fe1\u606f\uff0c\u60a8\u53ef\u4ee5\u78ba\u5b9a\u662f\u5426\u5b58\u5728\u91cd\u8907\u7684\u7d22\u5f15\u3002<\/p>\n<h3 id=\"2-%e5%88%aa%e9%99%a4%e9%87%8d%e8%a4%87%e7%9a%84%e7%b4%a2%e5%bc%95-STZEnvRrmW\">2. \u522a\u9664\u91cd\u8907\u7684\u7d22\u5f15<\/h3>\n<p>\u5982\u679c\u78ba\u5b9a\u5b58\u5728\u91cd\u8907\u7684\u7d22\u5f15\uff0c\u60a8\u53ef\u4ee5\u9078\u64c7\u522a\u9664\u4e0d\u9700\u8981\u7684\u7d22\u5f15\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u522a\u9664\u7d22\u5f15\uff1a<\/p>\n<pre><code>db.collection.dropIndex(\"indexName\")<\/code><\/pre>\n<p>\u8acb\u5c07\u201cindexName\u201d\u66ff\u63db\u70ba\u60a8\u8981\u522a\u9664\u7684\u7d22\u5f15\u540d\u7a31\u3002\u522a\u9664\u5f8c\uff0c\u60a8\u53ef\u4ee5\u518d\u6b21\u5617\u8a66\u5275\u5efa\u7d22\u5f15\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e5%94%af%e4%b8%80%e7%b4%a2%e5%bc%95-STZEnvRrmW\">3. \u4f7f\u7528\u552f\u4e00\u7d22\u5f15<\/h3>\n<p>\u5982\u679c\u60a8\u5e0c\u671b\u78ba\u4fdd\u7d22\u5f15\u7684\u552f\u4e00\u6027\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u552f\u4e00\u7d22\u5f15\u3002\u9019\u6a23\uff0c\u5373\u4f7f\u5617\u8a66\u5275\u5efa\u76f8\u540c\u7684\u7d22\u5f15\uff0cMongoDB\u4e5f\u6703\u963b\u6b62\u91cd\u8907\u7684\u6578\u64da\u63d2\u5165\u3002\u5275\u5efa\u552f\u4e00\u7d22\u5f15\u7684\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n<pre><code>db.collection.createIndex({ field: 1 }, { unique: true })<\/code><\/pre>\n<p>\u9019\u88e1\u7684\u201cfield\u201d\u662f\u60a8\u5e0c\u671b\u7d22\u5f15\u7684\u5b57\u6bb5\u540d\u7a31\u3002<\/p>\n<h3 id=\"4-%e6%9b%b4%e6%96%b0%e7%b4%a2%e5%bc%95%e7%b5%90%e6%a7%8b-STZEnvRrmW\">4. \u66f4\u65b0\u7d22\u5f15\u7d50\u69cb<\/h3>\n<p>\u5982\u679c\u60a8\u9700\u8981\u5275\u5efa\u4e00\u500b\u65b0\u7684\u7d22\u5f15\uff0c\u4f46\u53c8\u4e0d\u60f3\u522a\u9664\u73fe\u6709\u7684\u7d22\u5f15\uff0c\u53ef\u4ee5\u8003\u616e\u66f4\u65b0\u7d22\u5f15\u7684\u7d50\u69cb\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u66f4\u6539\u7d22\u5f15\u7684\u5b57\u6bb5\u6216\u6392\u5e8f\u65b9\u5f0f\uff0c\u4ee5\u907f\u514d\u8207\u73fe\u6709\u7d22\u5f15\u885d\u7a81\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-STZEnvRrmW\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u70ba\u4e86\u907f\u514d\u672a\u4f86\u51fa\u73fe\u932f\u8aa4\u4ee3\u78bc68\uff0c\u5efa\u8b70\u9075\u5faa\u4ee5\u4e0b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li>\u5728\u5275\u5efa\u7d22\u5f15\u4e4b\u524d\uff0c\u59cb\u7d42\u6aa2\u67e5\u73fe\u6709\u7d22\u5f15\u3002<\/li>\n<li>\u70ba\u7d22\u5f15\u4f7f\u7528\u6709\u610f\u7fa9\u7684\u540d\u7a31\uff0c\u4ee5\u4fbf\u65bc\u7ba1\u7406\u548c\u8b58\u5225\u3002<\/li>\n<li>\u5b9a\u671f\u6e05\u7406\u4e0d\u518d\u9700\u8981\u7684\u7d22\u5f15\uff0c\u4ee5\u4fdd\u6301\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-STZEnvRrmW\">\u7e3d\u7d50<\/h2>\n<p>MongoDB\u932f\u8aa4\u4ee3\u78bc68\u901a\u5e38\u662f\u7531\u65bc\u7d22\u5f15\u91cd\u8907\u9020\u6210\u7684\u3002\u901a\u904e\u6aa2\u67e5\u73fe\u6709\u7d22\u5f15\u3001\u522a\u9664\u91cd\u8907\u7d22\u5f15\u6216\u66f4\u65b0\u7d22\u5f15\u7d50\u69cb\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u9075\u5faa\u6700\u4f73\u5be6\u8e10\u5c07\u6709\u52a9\u65bc\u6e1b\u5c11\u672a\u4f86\u51fa\u73fe\u985e\u4f3c\u932f\u8aa4\u7684\u6a5f\u6703\u3002\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u652f\u6301\u6216\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u4ee5\u78ba\u4fdd\u60a8\u7684\u6578\u64da\u5eab\u904b\u884c\u9806\u5229\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc68\uff0c\u89e3\u6c7a\u7d22\u5f15\u5df2\u7d93\u5b58\u5728\u7684\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u64cd\u4f5c\u9806\u5229\u9032\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-176119","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/176119","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=176119"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/176119\/revisions"}],"predecessor-version":[{"id":176120,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/176119\/revisions\/176120"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=176119"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=176119"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=176119"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}