{"id":247380,"date":"2024-01-02T21:22:24","date_gmt":"2024-01-02T13:22:24","guid":{"rendered":"https:\/\/www.idc.net\/help\/247380\/"},"modified":"2024-01-02T21:22:24","modified_gmt":"2024-01-02T13:22:24","slug":"mongodb-%e6%9c%af%e8%af%ad-%e8%a7%86%e5%9b%be","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/247380\/","title":{"rendered":"MongoDB \u672f\u8bed &#8211; \u89c6\u56fe"},"content":{"rendered":"<p>  <title>MongoDB \u672f\u8bed - \u89c6\u56fe<\/title><\/p>\n<h1 id=\"mongodb-%e6%9c%af%e8%af%ad-%e8%a7%86%e5%9b%be-ieZlzDXZWx\"> MongoDB \u672f\u8bed - \u89c6\u56fe <\/h1>\n<h2 id=\"%e4%bb%80%e4%b9%88%e6%98%af-mongodb-%e8%a7%86%e5%9b%be%ef%bc%9f-ieZlzDXZWx\"> \u4ec0\u4e48\u662f MongoDB \u89c6\u56fe\uff1f<\/h2>\n<p> MongoDB \u89c6\u56fe\u662f\u4e00\u79cd\u865a\u62df\u7684\u96c6\u5408\uff0c\u5b83\u57fa\u4e8e\u4e00\u4e2a\u6216\u591a\u4e2a MongoDB \u96c6\u5408\u7684\u67e5\u8be2\u7ed3\u679c\u3002\u89c6\u56fe\u5e76\u4e0d\u5b9e\u9645\u5b58\u50a8\u6570\u636e\uff0c\u800c\u662f\u6839\u636e\u5b9a\u4e49\u7684\u67e5\u8be2\u52a8\u6001\u751f\u6210\u7ed3\u679c\u3002\u8fd9\u4f7f\u5f97\u89c6\u56fe\u53ef\u4ee5\u63d0\u4f9b\u4e00\u79cd\u65b9\u4fbf\u7684\u65b9\u5f0f\u6765\u8bbf\u95ee\u548c\u5206\u6790\u6570\u636e\uff0c\u800c\u65e0\u9700\u590d\u5236\u6216\u4fee\u6539\u5b9e\u9645\u7684\u6570\u636e\u96c6\u5408\u3002<\/p>\n<h2 id=\"%e5%88%9b%e5%bb%ba-mongodb-%e8%a7%86%e5%9b%be-ieZlzDXZWx\"> \u521b\u5efa MongoDB \u89c6\u56fe<\/h2>\n<p> \u8981\u521b\u5efa MongoDB \u89c6\u56fe\uff0c\u60a8\u9700\u8981\u4f7f\u7528 MongoDB \u7684\u805a\u5408\u7ba1\u9053\u64cd\u4f5c\u7b26\u3002\u805a\u5408\u7ba1\u9053\u64cd\u4f5c\u7b26\u5141\u8bb8\u60a8\u5b9a\u4e49\u4e00\u4e2a\u67e5\u8be2\u7ba1\u9053\uff0c\u8be5\u7ba1\u9053\u53ef\u4ee5\u5305\u542b\u591a\u4e2a\u9636\u6bb5\uff0c\u6bcf\u4e2a\u9636\u6bb5\u90fd\u4f1a\u5bf9\u8f93\u5165\u6570\u636e\u8fdb\u884c\u5904\u7406\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u521b\u5efa\u89c6\u56fe\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\n  db.createView(\n    \"viewName\",\n    \"sourceCollection\",\n    [\n      { $match: { field: \"value\" } },\n      { $project: { field1: 1, field2: 1 } },\n      { $sort: { field: 1 } }\n    ]\n  )\n  <\/code><\/pre>\n<p> \u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86\u4e09\u4e2a\u805a\u5408\u7ba1\u9053\u9636\u6bb5\u6765\u521b\u5efa\u89c6\u56fe\u3002\u9996\u5148\uff0c\u6211\u4eec\u4f7f\u7528 $match \u9636\u6bb5\u6765\u7b5b\u9009\u51fa field \u5b57\u6bb5\u7b49\u4e8e\u7279\u5b9a\u503c\u7684\u6587\u6863\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528 $project \u9636\u6bb5\u6765\u9009\u62e9\u8981\u5305\u542b\u5728\u89c6\u56fe\u4e2d\u7684\u5b57\u6bb5\u3002\u6700\u540e\uff0c\u6211\u4eec\u4f7f\u7528 $sort \u9636\u6bb5\u5bf9\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\u3002\u60a8\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u5b9a\u4e49\u4e0d\u540c\u7684\u9636\u6bb5\u6765\u521b\u5efa\u89c6\u56fe\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-mongodb-%e8%a7%86%e5%9b%be-ieZlzDXZWx\"> \u4f7f\u7528 MongoDB \u89c6\u56fe<\/h2>\n<p> \u4e00\u65e6\u521b\u5efa\u4e86 MongoDB \u89c6\u56fe\uff0c\u60a8\u53ef\u4ee5\u50cf\u4f7f\u7528\u4efb\u4f55\u5176\u4ed6\u96c6\u5408\u4e00\u6837\u4f7f\u7528\u5b83\u3002\u60a8\u53ef\u4ee5\u5bf9\u89c6\u56fe\u8fdb\u884c\u67e5\u8be2\u3001\u63d2\u5165\u3001\u66f4\u65b0\u548c\u5220\u9664\u64cd\u4f5c\u3002\u89c6\u56fe\u4f1a\u6839\u636e\u5b9a\u4e49\u7684\u67e5\u8be2\u52a8\u6001\u751f\u6210\u7ed3\u679c\uff0c\u56e0\u6b64\u60a8\u53ef\u4ee5\u968f\u65f6\u83b7\u53d6\u6700\u65b0\u7684\u6570\u636e\u3002<\/p>\n<h2 id=\"mongodb-%e8%a7%86%e5%9b%be%e7%9a%84%e4%bc%98%e5%8a%bf-ieZlzDXZWx\"> MongoDB \u89c6\u56fe\u7684\u4f18\u52bf<\/h2>\n<p> \u4f7f\u7528 MongoDB \u89c6\u56fe\u6709\u4ee5\u4e0b\u51e0\u4e2a\u4f18\u52bf\uff1a<\/p>\n<ul>\n<li> \u7b80\u5316\u6570\u636e\u8bbf\u95ee\uff1a\u89c6\u56fe\u63d0\u4f9b\u4e86\u4e00\u79cd\u65b9\u4fbf\u7684\u65b9\u5f0f\u6765\u8bbf\u95ee\u548c\u5206\u6790\u6570\u636e\uff0c\u65e0\u9700\u590d\u5236\u6216\u4fee\u6539\u5b9e\u9645\u7684\u6570\u636e\u96c6\u5408\u3002<\/li>\n<li> \u52a8\u6001\u66f4\u65b0\uff1a\u89c6\u56fe\u4f1a\u6839\u636e\u5b9a\u4e49\u7684\u67e5\u8be2\u52a8\u6001\u751f\u6210\u7ed3\u679c\uff0c\u56e0\u6b64\u60a8\u53ef\u4ee5\u968f\u65f6\u83b7\u53d6\u6700\u65b0\u7684\u6570\u636e\u3002<\/li>\n<li> \u6570\u636e\u5b89\u5168\u6027\uff1a\u901a\u8fc7\u4f7f\u7528\u89c6\u56fe\uff0c\u60a8\u53ef\u4ee5\u9650\u5236\u7528\u6237\u5bf9\u654f\u611f\u6570\u636e\u7684\u8bbf\u95ee\u6743\u9650\uff0c\u53ea\u66b4\u9732\u4ed6\u4eec\u9700\u8981\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%80%bb%e7%bb%93-ieZlzDXZWx\"> \u603b\u7ed3<\/h2>\n<p> MongoDB \u89c6\u56fe\u662f\u4e00\u79cd\u865a\u62df\u7684\u96c6\u5408\uff0c\u5b83\u57fa\u4e8e\u4e00\u4e2a\u6216\u591a\u4e2a MongoDB \u96c6\u5408\u7684\u67e5\u8be2\u7ed3\u679c\u3002\u89c6\u56fe\u63d0\u4f9b\u4e86\u4e00\u79cd\u65b9\u4fbf\u7684\u65b9\u5f0f\u6765\u8bbf\u95ee\u548c\u5206\u6790\u6570\u636e\uff0c\u65e0\u9700\u590d\u5236\u6216\u4fee\u6539\u5b9e\u9645\u7684\u6570\u636e\u96c6\u5408\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u805a\u5408\u7ba1\u9053\u64cd\u4f5c\u7b26\u6765\u521b\u5efa\u89c6\u56fe\uff0c\u5e76\u53ef\u4ee5\u50cf\u4f7f\u7528\u4efb\u4f55\u5176\u4ed6\u96c6\u5408\u4e00\u6837\u4f7f\u7528\u5b83\u3002\u901a\u8fc7\u4f7f\u7528\u89c6\u56fe\uff0c\u60a8\u53ef\u4ee5\u52a8\u6001\u66f4\u65b0\u6570\u636e\u5e76\u63d0\u9ad8\u6570\u636e\u5b89\u5168\u6027\u3002<\/p>\n<h3 id=\"%e9%a6%99%e6%b8%af%e6%9c%8d%e5%8a%a1%e5%99%a8%e9%a6%96%e9%80%89%e5%90%8e%e6%b5%aa%e4%ba%91-ieZlzDXZWx\"> \u9999\u6e2f\u670d\u52a1\u5668\u9996\u9009\u540e\u6d6a\u4e91 <\/h3>\n<p> \u540e\u6d6a\u4e91\u662f\u4e00\u5bb6\u63d0\u4f9b\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u548c\u4e91\u670d\u52a1\u5668\u7684\u4e91\u8ba1\u7b97\u516c\u53f8\u3002\u5982\u679c\u60a8\u9700\u8981\u53ef\u9760\u7684\u9999\u6e2f\u670d\u52a1\u5668\uff0c\u540e\u6d6a\u4e91\u662f\u60a8\u7684\u9996\u9009\u3002\u8bf7\u8bbf\u95ee\u6211\u4eec\u7684\u5b98\u7f51\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff1a<a href=\"https:\/\/idc.net\">https:\/\/idc.net<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>MongoDB \u672f\u8bed - \u89c6\u56fe MongoDB \u672f\u8bed - \u89c6\u56fe \u4ec0\u4e48\u662f MongoDB \u89c6\u56fe\uff1f MongoDB [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7038],"tags":[],"class_list":["post-247380","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/247380","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=247380"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/247380\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=247380"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=247380"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=247380"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}