{"id":21542,"date":"2024-01-02T11:11:21","date_gmt":"2024-01-02T11:11:21","guid":{"rendered":"https:\/\/server.hk\/blog\/21542\/"},"modified":"2024-11-14T10:31:01","modified_gmt":"2024-11-14T02:31:01","slug":"mongodb-glossary-compound-index","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21542\/","title":{"rendered":"MongoDB \u8a5e\u5f59\u8868 – \u8907\u5408\u7d22\u5f15"},"content":{"rendered":"

MongoDB \u8a5e\u5f59\u8868 – \u8907\u5408\u7d22\u5f15<\/h1>\n

\u5728\u6578\u64da\u5eab\u7684\u4e16\u754c\u4e2d\uff0c\u7d22\u5f15\u5728\u63d0\u5347\u67e5\u8a62\u6027\u80fd\u548c\u52a0\u901f\u6578\u64da\u6aa2\u7d22\u65b9\u9762\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\u3002MongoDB \u4f5c\u70ba\u4e00\u500b\u53d7\u6b61\u8fce\u7684 NoSQL \u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u985e\u578b\u7684\u7d22\u5f15\u4f86\u512a\u5316\u67e5\u8a62\u57f7\u884c\u3002\u5176\u4e2d\u4e00\u7a2e\u7d22\u5f15\u662f\u8907\u5408\u7d22\u5f15\uff0c\u5b83\u5c07\u591a\u500b\u5b57\u6bb5\u7d44\u5408\u6210\u4e00\u500b\u7d22\u5f15\u9375\u3002<\/p>\n

\u4e86\u89e3\u8907\u5408\u7d22\u5f15<\/h2>\n

MongoDB \u4e2d\u7684\u8907\u5408\u7d22\u5f15\u662f\u4e00\u500b\u5305\u542b\u591a\u500b\u5b57\u6bb5\u7684\u7d22\u5f15\u3002\u8207\u50c5\u8003\u616e\u55ae\u500b\u5b57\u6bb5\u7684\u55ae\u5b57\u6bb5\u7d22\u5f15\u4e0d\u540c\uff0c\u8907\u5408\u7d22\u5f15\u540c\u6642\u8003\u616e\u591a\u500b\u5b57\u6bb5\u3002\u9019\u4f7f\u5f97\u6839\u64da\u591a\u500b\u689d\u4ef6\u9032\u884c\u67e5\u8a62\u548c\u6392\u5e8f\u66f4\u52a0\u9ad8\u6548\u3002<\/p>\n

\u4f8b\u5982\uff0c\u5047\u8a2d\u6709\u4e00\u500b\u5305\u542b\u5ba2\u6236\u6578\u64da\u7684\u96c6\u5408\uff0c\u5176\u4e2d\u5305\u62ec “\u59d3\u540d”\u3001”\u5e74\u9f61” \u548c “\u57ce\u5e02” \u7b49\u5b57\u6bb5\u3002\u5982\u679c\u60a8\u7d93\u5e38\u67e5\u8a62\u8a72\u96c6\u5408\u4ee5\u6839\u64da\u5ba2\u6236\u7684\u5e74\u9f61\u548c\u57ce\u5e02\u9032\u884c\u67e5\u627e\uff0c\u5247\u5728 “\u5e74\u9f61” \u548c “\u57ce\u5e02” \u5b57\u6bb5\u4e0a\u5275\u5efa\u8907\u5408\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n

\u5275\u5efa\u8907\u5408\u7d22\u5f15<\/h2>\n

\u8981\u5728 MongoDB \u4e2d\u5275\u5efa\u8907\u5408\u7d22\u5f15\uff0c\u60a8\u9700\u8981\u6307\u5b9a\u61c9\u5305\u542b\u5728\u7d22\u5f15\u4e2d\u7684\u5b57\u6bb5\u3002\u7d22\u5f15\u5b9a\u7fa9\u4e2d\u7684\u5b57\u6bb5\u9806\u5e8f\u975e\u5e38\u91cd\u8981\uff0c\u56e0\u70ba\u5b83\u6c7a\u5b9a\u4e86\u7d22\u5f15\u7684\u884c\u70ba\u3002<\/p>\n

\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u5728\u4e0a\u8ff0\u5ba2\u6236\u96c6\u5408\u4e2d\u5275\u5efa\u4e86\u4e00\u500b\u5728 “\u5e74\u9f61” \u548c “\u57ce\u5e02” \u5b57\u6bb5\u4e0a\u7684\u8907\u5408\u7d22\u5f15\uff0cMongoDB \u5c07\u9996\u5148\u6839\u64da “\u5e74\u9f61” \u5b57\u6bb5\u5c0d\u6578\u64da\u9032\u884c\u6392\u5e8f\uff0c\u7136\u5f8c\u518d\u6839\u64da “\u57ce\u5e02” \u5b57\u6bb5\u9032\u884c\u6392\u5e8f\u3002\u9019\u610f\u5473\u8457\u6d89\u53ca\u9019\u5169\u500b\u5b57\u6bb5\u7684\u67e5\u8a62\u5c07\u53d7\u76ca\u65bc\u8a72\u7d22\u5f15\uff0c\u800c\u50c5\u6d89\u53ca\u5176\u4e2d\u4e00\u500b\u5b57\u6bb5\u7684\u67e5\u8a62\u53ef\u80fd\u7121\u6cd5\u6709\u6548\u5229\u7528\u8a72\u8907\u5408\u7d22\u5f15\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u4f7f\u7528 MongoDB shell \u5275\u5efa\u8907\u5408\u7d22\u5f15\u7684\u793a\u4f8b\uff1a<\/p>\n

db.customer.createIndex({ age: 1, city: 1 })<\/code><\/pre>\n
\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u6578\u5b57 “1” \u8868\u793a\u5169\u500b\u5b57\u6bb5\u90fd\u662f\u5347\u5e8f\u6392\u5e8f\u3002\u5982\u679c\u9700\u8981\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528 “-1” \u9032\u884c\u964d\u5e8f\u6392\u5e8f\u3002<\/p>\n
\u4f7f\u7528\u8907\u5408\u7d22\u5f15\u9032\u884c\u67e5\u8a62<\/h2>\n
\u4e00\u65e6\u5275\u5efa\u4e86\u8907\u5408\u7d22\u5f15\uff0c\u60a8\u53ef\u4ee5\u5229\u7528\u5b83\u4f86\u63d0\u5347\u67e5\u8a62\u6027\u80fd\u3002\u5982\u679c\u67e5\u8a62\u6d89\u53ca\u5230\u5df2\u7d22\u5f15\u7684\u5b57\u6bb5\uff0cMongoDB \u6703\u81ea\u52d5\u4f7f\u7528\u8907\u5408\u7d22\u5f15\u3002<\/p>\n
\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u60f3\u67e5\u627e\u6240\u6709\u5e74\u9f61\u70ba 30 \u4e14\u5c45\u4f4f\u5728\u7d10\u7d04\u7684\u5ba2\u6236\uff0c”\u5e74\u9f61” \u548c “\u57ce\u5e02” \u5b57\u6bb5\u4e0a\u7684\u8907\u5408\u7d22\u5f15\u5c07\u88ab\u6709\u6548\u5730\u4f7f\u7528\u3002MongoDB \u5c07\u5229\u7528\u8a72\u7d22\u5f15\u4f86\u5feb\u901f\u5b9a\u4f4d\u76f8\u95dc\u6587\u6a94\uff0c\u800c\u7121\u9700\u6383\u63cf\u6574\u500b\u96c6\u5408\u3002<\/p>\n
\u7136\u800c\uff0c\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u67e5\u8a62\u4e2d\u5b57\u6bb5\u7684\u9806\u5e8f\u5f88\u91cd\u8981\u3002\u53ea\u6709\u7576\u67e5\u8a62\u689d\u4ef6\u8207\u7d22\u5f15\u5b57\u6bb5\u9806\u5e8f\u5339\u914d\u6642\uff0cMongoDB \u624d\u80fd\u9ad8\u6548\u5730\u4f7f\u7528\u8907\u5408\u7d22\u5f15\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
MongoDB \u4e2d\u7684\u8907\u5408\u7d22\u5f15\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u5de5\u5177\uff0c\u7576\u8655\u7406\u591a\u500b\u5b57\u6bb5\u6642\u53ef\u4ee5\u512a\u5316\u67e5\u8a62\u6027\u80fd\u3002\u901a\u904e\u5c07\u591a\u500b\u5b57\u6bb5\u7d44\u5408\u6210\u4e00\u500b\u7d22\u5f15\u9375\uff0cMongoDB \u53ef\u4ee5\u9ad8\u6548\u8655\u7406\u6d89\u53ca\u9019\u4e9b\u5b57\u6bb5\u7684\u67e5\u8a62\u3002\u5275\u5efa\u8907\u5408\u7d22\u5f15\u6642\u9700\u8981\u4ed4\u7d30\u8003\u616e\u5b57\u6bb5\u7684\u9806\u5e8f\uff0c\u4e26\u4e14\u67e5\u8a62\u5fc5\u9808\u8207\u7d22\u5f15\u5b57\u6bb5\u9806\u5e8f\u76f8\u5339\u914d\u624d\u80fd\u53d7\u76ca\u65bc\u5176\u512a\u5316\u3002<\/p>\n
\u8981\u4e86\u89e3\u66f4\u591a\u95dc\u65bc MongoDB \u53ca\u5176\u529f\u80fd\u7684\u8cc7\u8a0a\uff0c\u8acb\u8003\u616e\u700f\u89bd Server.HK<\/a>\uff0c\u9019\u662f\u4e00\u5bb6\u63d0\u4f9b\u53ef\u9760\u4e14\u9ad8\u6548\u7684 MongoDB \u8a17\u7ba1\u89e3\u6c7a\u65b9\u6848\u7684\u9818\u5148 VPS \u8a17\u7ba1\u516c\u53f8\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
MongoDB \u8a5e\u5f59\u8868 &#82...<\/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-21542","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21542","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=21542"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21542\/revisions"}],"predecessor-version":[{"id":23916,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21542\/revisions\/23916"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21542"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21542"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}