{"id":175771,"date":"2024-11-08T08:51:18","date_gmt":"2024-11-08T00:51:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175771\/"},"modified":"2024-11-08T08:51:18","modified_gmt":"2024-11-08T00:51:18","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-165-%e8%a6%96%e5%9c%96%e6%b7%b1%e5%ba%a6%e9%99%90%e5%88%b6%e8%b6%85%e5%87%ba","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175771\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc &#8211; 165 &#8211; \u8996\u5716\u6df1\u5ea6\u9650\u5236\u8d85\u51fa"},"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-165-%e8%a6%96%e5%9c%96%e6%b7%b1%e5%ba%a6%e9%99%90%e5%88%b6%e8%b6%85%e5%87%ba-OPbygCkczo\">\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc &#8211; 165 &#8211; \u8996\u5716\u6df1\u5ea6\u9650\u5236\u8d85\u51fa<\/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\u78bc165\uff0c\u8a72\u932f\u8aa4\u901a\u5e38\u8868\u793a\u201c\u8996\u5716\u6df1\u5ea6\u9650\u5236\u8d85\u51fa\u201d\u3002\u9019\u500b\u554f\u984c\u901a\u5e38\u767c\u751f\u5728\u67e5\u8a62\u8907\u96dc\u7684\u8996\u5716\u6642\uff0c\u7279\u5225\u662f\u7576\u8996\u5716\u7684\u5d4c\u5957\u5c64\u6b21\u904e\u591a\u6642\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc165%e7%9a%84%e5%8e%9f%e5%9b%a0-OPbygCkczo\">\u932f\u8aa4\u4ee3\u78bc165\u7684\u539f\u56e0<\/h2>\n<p>MongoDB\u7684\u8996\u5716\u662f\u4e00\u7a2e\u865b\u64ec\u96c6\u5408\uff0c\u5b83\u662f\u57fa\u65bc\u5176\u4ed6\u96c6\u5408\u7684\u67e5\u8a62\u7d50\u679c\u3002\u7576\u4f60\u5275\u5efa\u4e00\u500b\u8996\u5716\u6642\uff0cMongoDB\u6703\u5c07\u5176\u67e5\u8a62\u7d50\u679c\u5132\u5b58\u70ba\u4e00\u500b\u865b\u64ec\u96c6\u5408\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u4f7f\u5f97\u67e5\u8a62\u8b8a\u5f97\u66f4\u52a0\u9748\u6d3b\uff0c\u4f46\u540c\u6642\u4e5f\u53ef\u80fd\u5c0e\u81f4\u6027\u80fd\u554f\u984c\u548c\u932f\u8aa4\u3002<\/p>\n<p>\u932f\u8aa4\u4ee3\u78bc165\u901a\u5e38\u662f\u7531\u65bc\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\u5f15\u8d77\u7684\uff1a<\/p>\n<ul>\n<li><strong>\u8996\u5716\u5d4c\u5957\u904e\u6df1\uff1a<\/strong>\u7576\u4e00\u500b\u8996\u5716\u5f15\u7528\u4e86\u53e6\u4e00\u500b\u8996\u5716\uff0c\u4e26\u4e14\u9019\u7a2e\u5f15\u7528\u5c64\u6b21\u904e\u591a\u6642\uff0c\u5c31\u6703\u5c0e\u81f4\u6df1\u5ea6\u9650\u5236\u8d85\u51fa\u3002<\/li>\n<li><strong>\u8907\u96dc\u7684\u67e5\u8a62\u7d50\u69cb\uff1a<\/strong>\u5982\u679c\u67e5\u8a62\u4e2d\u5305\u542b\u4e86\u591a\u500b\u806f\u63a5\u6216\u904e\u6ffe\u689d\u4ef6\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4MongoDB\u5728\u8655\u7406\u6642\u8d85\u51fa\u5176\u5167\u90e8\u9650\u5236\u3002<\/li>\n<li><strong>\u8cc7\u6599\u91cf\u904e\u5927\uff1a<\/strong>\u7576\u67e5\u8a62\u7684\u8cc7\u6599\u91cf\u904e\u5927\u6642\uff0cMongoDB\u53ef\u80fd\u7121\u6cd5\u6709\u6548\u5730\u8655\u7406\u9019\u4e9b\u8cc7\u6599\uff0c\u5f9e\u800c\u5c0e\u81f4\u932f\u8aa4\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%bc165-OPbygCkczo\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa4\u4ee3\u78bc165<\/h2>\n<p>\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc165\u7684\u65b9\u6cd5\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u7a2e\uff1a<\/p>\n<h3 id=\"1-%e7%b0%a1%e5%8c%96%e8%a6%96%e5%9c%96%e7%b5%90%e6%a7%8b-OPbygCkczo\">1. \u7c21\u5316\u8996\u5716\u7d50\u69cb<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u4f60\u7684\u8996\u5716\u7d50\u69cb\uff0c\u770b\u770b\u662f\u5426\u53ef\u4ee5\u7c21\u5316\u3002\u907f\u514d\u904e\u591a\u7684\u5d4c\u5957\u8996\u5716\uff0c\u76e1\u91cf\u5c07\u67e5\u8a62\u5408\u4f75\u5230\u4e00\u500b\u8996\u5716\u4e2d\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u6709\u4ee5\u4e0b\u5169\u500b\u8996\u5716\uff1a<\/p>\n<pre><code>CREATE VIEW viewA AS SELECT * FROM collectionA;\nCREATE VIEW viewB AS SELECT * FROM viewA WHERE condition;<\/code><\/pre>\n<p>\u53ef\u4ee5\u8003\u616e\u5c07\u5176\u5408\u4f75\u70ba\u4e00\u500b\u8996\u5716\uff1a<\/p>\n<pre><code>CREATE VIEW viewCombined AS SELECT * FROM collectionA WHERE condition;<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e8%81%9a%e5%90%88%e7%ae%a1%e9%81%93-OPbygCkczo\">2. \u4f7f\u7528\u805a\u5408\u7ba1\u9053<\/h3>\n<p>\u5982\u679c\u4f60\u7684\u67e5\u8a62\u904e\u65bc\u8907\u96dc\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528MongoDB\u7684\u805a\u5408\u7ba1\u9053\u4f86\u66ff\u4ee3\u8996\u5716\u3002\u805a\u5408\u7ba1\u9053\u5141\u8a31\u4f60\u5728\u67e5\u8a62\u4e2d\u9032\u884c\u66f4\u9748\u6d3b\u7684\u64cd\u4f5c\uff0c\u4e26\u4e14\u4e0d\u6703\u53d7\u5230\u8996\u5716\u6df1\u5ea6\u7684\u9650\u5236\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>db.collectionA.aggregate([\n    { $match: { condition } },\n    { $lookup: { from: \"collectionB\", localField: \"field\", foreignField: \"field\", as: \"joinedData\" } }\n]);<\/code><\/pre>\n<h3 id=\"3-%e6%b8%9b%e5%b0%91%e8%b3%87%e6%96%99%e9%87%8f-OPbygCkczo\">3. \u6e1b\u5c11\u8cc7\u6599\u91cf<\/h3>\n<p>\u5982\u679c\u67e5\u8a62\u7684\u8cc7\u6599\u91cf\u904e\u5927\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u66f4\u5177\u9ad4\u7684\u904e\u6ffe\u689d\u4ef6\u4f86\u6e1b\u5c11\u8fd4\u56de\u7684\u8cc7\u6599\u91cf\u3002\u9019\u6a23\u4e0d\u50c5\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u9084\u53ef\u4ee5\u907f\u514d\u932f\u8aa4\u7684\u767c\u751f\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-OPbygCkczo\">\u7e3d\u7d50<\/h2>\n<p>MongoDB\u932f\u8aa4\u4ee3\u78bc165\u901a\u5e38\u662f\u7531\u65bc\u8996\u5716\u6df1\u5ea6\u9650\u5236\u8d85\u51fa\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u7c21\u5316\u8996\u5716\u7d50\u69cb\u3001\u4f7f\u7528\u805a\u5408\u7ba1\u9053\u4ee5\u53ca\u6e1b\u5c11\u8cc7\u6599\u91cf\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u9019\u4e00\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u67b6\u69cb\u548c\u67e5\u8a62\u65b9\u5f0f\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\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\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u6578\u64da\u5eab\u548c\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc165\uff0c\u89e3\u6c7a\u8996\u5716\u6df1\u5ea6\u9650\u5236\u8d85\u51fa\u554f\u984c\uff0c\u63d0\u5347\u6578\u64da\u67e5\u8a62\u6548\u7387\u8207\u7a69\u5b9a\u6027\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-175771","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175771","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=175771"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175771\/revisions"}],"predecessor-version":[{"id":175772,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175771\/revisions\/175772"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=175771"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=175771"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=175771"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}