{"id":63636,"date":"2024-10-14T01:12:13","date_gmt":"2024-10-13T17:12:13","guid":{"rendered":"https:\/\/server.hk\/cnblog\/63636\/"},"modified":"2024-10-14T01:12:14","modified_gmt":"2024-10-13T17:12:14","slug":"mongodb-2-0%e6%ad%a3%e5%bc%8f%e7%89%88%e7%99%bc%e5%b8%83","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/63636\/","title":{"rendered":"MongoDB 2.0\u6b63\u5f0f\u7248\u767c\u5e03"},"content":{"rendered":"<h1 id=\"mongodb-2-0%e6%ad%a3%e5%bc%8f%e7%89%88%e7%99%bc%e5%b8%83-NtfJogTEvt\">MongoDB 2.0\u6b63\u5f0f\u7248\u767c\u5e03<\/h1>\n<p>MongoDB\u662f\u4e00\u500b\u958b\u6e90\u7684NoSQL\u6578\u64da\u5eab\uff0c\u56e0\u5176\u9748\u6d3b\u7684\u6578\u64da\u6a21\u578b\u548c\u9ad8\u6548\u7684\u6027\u80fd\u800c\u53d7\u5230\u5ee3\u6cdb\u95dc\u6ce8\u3002\u96a8\u8457\u6280\u8853\u7684\u9032\u6b65\uff0cMongoDB\u65bc2011\u5e74\u6b63\u5f0f\u767c\u5e03\u4e86\u51762.0\u7248\u672c\uff0c\u9019\u4e00\u7248\u672c\u5e36\u4f86\u4e86\u591a\u9805\u91cd\u8981\u7684\u529f\u80fd\u548c\u6539\u9032\uff0c\u9032\u4e00\u6b65\u63d0\u5347\u4e86\u5176\u5728\u6578\u64da\u5b58\u5132\u548c\u7ba1\u7406\u65b9\u9762\u7684\u80fd\u529b\u3002<\/p>\n<h2 id=\"mongodb-2-0%e7%9a%84%e4%b8%bb%e8%a6%81%e7%89%b9%e6%80%a7-NtfJogTEvt\">MongoDB 2.0\u7684\u4e3b\u8981\u7279\u6027<\/h2>\n<p>MongoDB 2.0\u7248\u672c\u7684\u767c\u5e03\u6a19\u8a8c\u8457\u5176\u5728\u6578\u64da\u5eab\u6280\u8853\u4e0a\u7684\u4e00\u500b\u91cd\u8981\u91cc\u7a0b\u7891\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4e3b\u8981\u7279\u6027\uff1a<\/p>\n<ul>\n<li><strong>\u805a\u5408\u6846\u67b6\uff08Aggregation Framework\uff09<\/strong>: \u9019\u4e00\u65b0\u529f\u80fd\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u66f4\u65b9\u4fbf\u5730\u9032\u884c\u6578\u64da\u7684\u805a\u5408\u64cd\u4f5c\u3002\u7528\u6236\u53ef\u4ee5\u4f7f\u7528\u7ba1\u9053\u64cd\u4f5c\u7b26\u4f86\u9032\u884c\u6578\u64da\u7684\u904e\u6ffe\u3001\u5206\u7d44\u548c\u6392\u5e8f\uff0c\u9019\u6a23\u53ef\u4ee5\u66f4\u9748\u6d3b\u5730\u8655\u7406\u8907\u96dc\u7684\u67e5\u8a62\u3002<\/li>\n<li><strong>\u7d22\u5f15\u6539\u9032<\/strong>: MongoDB 2.0\u5f15\u5165\u4e86\u5c0d\u5730\u7406\u7a7a\u9593\u7d22\u5f15\u7684\u652f\u6301\uff0c\u9019\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u66f4\u9ad8\u6548\u5730\u8655\u7406\u8207\u5730\u7406\u4f4d\u7f6e\u76f8\u95dc\u7684\u6578\u64da\u67e5\u8a62\u3002<\/li>\n<li><strong>\u8907\u88fd\u96c6\uff08Replica Sets\uff09<\/strong>: \u8907\u88fd\u96c6\u7684\u652f\u6301\u4f7f\u5f97\u6578\u64da\u7684\u9ad8\u53ef\u7528\u6027\u5f97\u5230\u4e86\u4fdd\u969c\u3002\u7528\u6236\u53ef\u4ee5\u8f15\u9b06\u5730\u8a2d\u7f6e\u4e3b\u5f9e\u8907\u88fd\uff0c\u5f9e\u800c\u5be6\u73fe\u6578\u64da\u7684\u5197\u9918\u548c\u6545\u969c\u8f49\u79fb\u3002<\/li>\n<li><strong>\u6027\u80fd\u512a\u5316<\/strong>: \u5728\u6027\u80fd\u65b9\u9762\uff0cMongoDB 2.0\u9032\u884c\u4e86\u591a\u9805\u512a\u5316\uff0c\u5305\u62ec\u66f4\u5feb\u7684\u67e5\u8a62\u901f\u5ea6\u548c\u66f4\u4f4e\u7684\u5167\u5b58\u4f7f\u7528\u7387\uff0c\u9019\u4f7f\u5f97\u5176\u5728\u8655\u7406\u5927\u898f\u6a21\u6578\u64da\u6642\u8868\u73fe\u66f4\u52a0\u51fa\u8272\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%81%9a%e5%90%88%e6%a1%86%e6%9e%b6%e7%9a%84%e8%a9%b3%e7%b4%b0%e4%bb%8b%e7%b4%b9-NtfJogTEvt\">\u805a\u5408\u6846\u67b6\u7684\u8a73\u7d30\u4ecb\u7d39<\/h2>\n<p>\u805a\u5408\u6846\u67b6\u662fMongoDB 2.0\u7684\u4e00\u500b\u6838\u5fc3\u7279\u6027\uff0c\u5b83\u5141\u8a31\u7528\u6236\u4f7f\u7528\u4e00\u7cfb\u5217\u7684\u64cd\u4f5c\u4f86\u8655\u7406\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528\u805a\u5408\u6846\u67b6\u4f86\u8a08\u7b97\u67d0\u500b\u96c6\u5408\u4e2d\u6bcf\u500b\u985e\u5225\u7684\u5e73\u5747\u50f9\u683c\uff1a<\/p>\n<pre><code>\ndb.products.aggregate([\n    { $group: { _id: \"$category\", averagePrice: { $avg: \"$price\" } } }\n]);\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86$group\u64cd\u4f5c\u7b26\u4f86\u6839\u64da\u985e\u5225\u9032\u884c\u5206\u7d44\uff0c\u4e26\u8a08\u7b97\u6bcf\u500b\u985e\u5225\u7684\u5e73\u5747\u50f9\u683c\u3002\u9019\u7a2e\u9748\u6d3b\u7684\u67e5\u8a62\u65b9\u5f0f\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u66f4\u9ad8\u6548\u5730\u5206\u6790\u6578\u64da\u3002<\/p>\n<h2 id=\"%e7%b4%a2%e5%bc%95%e7%9a%84%e6%94%b9%e9%80%b2-NtfJogTEvt\">\u7d22\u5f15\u7684\u6539\u9032<\/h2>\n<p>MongoDB 2.0\u7248\u672c\u5c0d\u7d22\u5f15\u7684\u652f\u6301\u9032\u884c\u4e86\u986f\u8457\u6539\u9032\uff0c\u7279\u5225\u662f\u5c0d\u5730\u7406\u7a7a\u9593\u7d22\u5f15\u7684\u652f\u6301\u3002\u9019\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u5728\u8655\u7406\u5730\u7406\u4f4d\u7f6e\u6578\u64da\u6642\uff0c\u9032\u884c\u66f4\u5feb\u901f\u7684\u67e5\u8a62\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u5275\u5efa\u4e00\u500b\u5730\u7406\u7a7a\u9593\u7d22\u5f15\uff1a<\/p>\n<pre><code>\ndb.places.createIndex({ location: \"2dsphere\" });\n<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u7d22\u5f15\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u5feb\u901f\u67e5\u8a62\u7279\u5b9a\u7bc4\u570d\u5167\u7684\u5730\u7406\u4f4d\u7f6e\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u5347\u61c9\u7528\u7684\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-NtfJogTEvt\">\u7d50\u8ad6<\/h2>\n<p>MongoDB 2.0\u7684\u767c\u5e03\u4e0d\u50c5\u5e36\u4f86\u4e86\u591a\u9805\u65b0\u7279\u6027\uff0c\u9084\u986f\u8457\u63d0\u5347\u4e86\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u53ef\u7528\u6027\u3002\u96a8\u8457\u8d8a\u4f86\u8d8a\u591a\u7684\u4f01\u696d\u9078\u64c7\u4f7f\u7528MongoDB\u4f5c\u70ba\u5176\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u9019\u4e00\u7248\u672c\u7684\u63a8\u51fa\u7121\u7591\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u66f4\u5f37\u5927\u7684\u5de5\u5177\u4f86\u61c9\u5c0d\u65e5\u76ca\u589e\u9577\u7684\u6578\u64da\u9700\u6c42\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u4e14\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528MongoDB\u4e26\u642d\u914d\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u5f37\u5927\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MongoDB 2.0\u6b63\u5f0f\u7248\u767c\u5e03\uff0c\u5e36\u4f86\u6027\u80fd\u63d0\u5347\u3001\u6539\u9032\u7684\u67e5\u8a62\u529f\u80fd\u548c\u66f4\u5f37\u5927\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\uff0c\u52a9\u529b\u958b\u767c\u8005\u5275\u5efa\u9ad8\u6548\u61c9\u7528\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-63636","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/63636","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=63636"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/63636\/revisions"}],"predecessor-version":[{"id":63637,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/63636\/revisions\/63637"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=63636"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=63636"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=63636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}