{"id":247374,"date":"2024-01-02T21:16:23","date_gmt":"2024-01-02T13:16:23","guid":{"rendered":"https:\/\/www.idc.net\/help\/247374\/"},"modified":"2024-01-02T21:16:23","modified_gmt":"2024-01-02T13:16:23","slug":"mongodb-%e6%9c%af%e8%af%ad-%e6%8f%90%e7%a4%ba","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/247374\/","title":{"rendered":"MongoDB \u672f\u8bed &#8211; \u63d0\u793a"},"content":{"rendered":"<p><title id=\"mongodb-%e6%9c%af%e8%af%ad-%e6%8f%90%e7%a4%ba-iJFZjtDqva\">MongoDB \u672f\u8bed - \u63d0\u793a<\/title><\/p>\n<h1 id=\"mongodb-%e6%9c%af%e8%af%ad-%e6%8f%90%e7%a4%ba-iJFZjtDqva\">MongoDB \u672f\u8bed - \u63d0\u793a<\/h1>\n<h2 id=\"%e4%bb%80%e4%b9%88%e6%98%afmongodb%ef%bc%9f-iJFZjtDqva\">\u4ec0\u4e48\u662fMongoDB\uff1f<\/h2>\n<p>MongoDB\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u6587\u6863\u6570\u636e\u5e93\uff0c\u91c7\u7528\u5206\u5e03\u5f0f\u6587\u4ef6\u5b58\u50a8\u65b9\u5f0f\uff0c\u65e8\u5728\u4e3a\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u4eba\u5458\u63d0\u4f9b\u9ad8\u6027\u80fd\u3001\u53ef\u6269\u5c55\u6027\u548c\u7075\u6d3b\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e4%b9%88%e6%98%afmongodb%e7%9a%84%e6%8f%90%e7%a4%ba%ef%bc%9f-iJFZjtDqva\">\u4ec0\u4e48\u662fMongoDB\u7684\u63d0\u793a\uff1f<\/h2>\n<p>\u5728MongoDB\u4e2d\uff0c\u63d0\u793a\u662f\u4e00\u79cd\u67e5\u8be2\u4f18\u5316\u6280\u672f\uff0c\u7528\u4e8e\u6307\u5bfc\u67e5\u8be2\u6267\u884c\u5668\u9009\u62e9\u6700\u4f73\u7684\u67e5\u8be2\u8ba1\u5212\u3002\u63d0\u793a\u53ef\u4ee5\u901a\u8fc7\u6307\u5b9a\u67e5\u8be2\u8ba1\u5212\u7684\u7d22\u5f15\u6216\u5f3a\u5236\u6267\u884c\u7279\u5b9a\u7684\u67e5\u8be2\u8ba1\u5212\u6765\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e8%a7%81%e7%9a%84mongodb%e6%8f%90%e7%a4%ba%e7%b1%bb%e5%9e%8b-iJFZjtDqva\">\u5e38\u89c1\u7684MongoDB\u63d0\u793a\u7c7b\u578b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684MongoDB\u63d0\u793a\u7c7b\u578b\uff1a<\/p>\n<h3 id=\"%e7%b4%a2%e5%bc%95%e6%8f%90%e7%a4%ba-iJFZjtDqva\">\u7d22\u5f15\u63d0\u793a<\/h3>\n<p>\u7d22\u5f15\u63d0\u793a\u662f\u6700\u5e38\u7528\u7684\u63d0\u793a\u7c7b\u578b\u4e4b\u4e00\u3002\u901a\u8fc7\u4f7f\u7528\u7d22\u5f15\u63d0\u793a\uff0c\u60a8\u53ef\u4ee5\u6307\u5b9a\u67e5\u8be2\u5e94\u4f7f\u7528\u7684\u7d22\u5f15\uff0c\u4ee5\u4fbf\u52a0\u901f\u67e5\u8be2\u6267\u884c\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528hint()\u65b9\u6cd5\u6765\u6307\u5b9a\u67e5\u8be2\u5e94\u4f7f\u7528\u7684\u7d22\u5f15\uff1a<\/p>\n<pre><code>db.collection.find({ name: \"John\" }).hint({ name: 1 });\n<\/code><\/pre>\n<h3 id=\"%e5%bc%ba%e5%88%b6%e6%89%a7%e8%a1%8c%e6%8f%90%e7%a4%ba-iJFZjtDqva\">\u5f3a\u5236\u6267\u884c\u63d0\u793a<\/h3>\n<p>\u5f3a\u5236\u6267\u884c\u63d0\u793a\u662f\u53e6\u4e00\u79cd\u5e38\u89c1\u7684\u63d0\u793a\u7c7b\u578b\u3002\u901a\u8fc7\u4f7f\u7528\u5f3a\u5236\u6267\u884c\u63d0\u793a\uff0c\u60a8\u53ef\u4ee5\u5f3a\u5236\u67e5\u8be2\u6267\u884c\u5668\u4f7f\u7528\u7279\u5b9a\u7684\u67e5\u8be2\u8ba1\u5212\uff0c\u800c\u4e0d\u8003\u8651\u81ea\u52a8\u9009\u62e9\u7684\u6700\u4f73\u8ba1\u5212\u3002\u8fd9\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u5f88\u6709\u7528\uff0c\u4f8b\u5982\u5f53\u60a8\u60f3\u6d4b\u8bd5\u4e0d\u540c\u67e5\u8be2\u8ba1\u5212\u7684\u6027\u80fd\u65f6\u3002<\/p>\n<pre><code>db.collection.find({ name: \"John\" }).hint(\"index_name\");\n<\/code><\/pre>\n<h3 id=\"%e6%9f%a5%e8%af%a2%e8%ae%a1%e5%88%92%e6%8f%90%e7%a4%ba-iJFZjtDqva\">\u67e5\u8be2\u8ba1\u5212\u63d0\u793a<\/h3>\n<p>\u67e5\u8be2\u8ba1\u5212\u63d0\u793a\u662f\u4e00\u79cd\u66f4\u9ad8\u7ea7\u7684\u63d0\u793a\u7c7b\u578b\uff0c\u5141\u8bb8\u60a8\u6307\u5b9a\u67e5\u8be2\u8ba1\u5212\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u67e5\u8be2\u8ba1\u5212\u63d0\u793a\u6765\u6307\u5b9a\u67e5\u8be2\u8ba1\u5212\u7684\u7d22\u5f15\u3001\u8fc7\u6ee4\u6761\u4ef6\u548c\u6392\u5e8f\u89c4\u5219\u7b49\u3002\u8fd9\u5bf9\u4e8e\u9700\u8981\u7cbe\u786e\u63a7\u5236\u67e5\u8be2\u6267\u884c\u7684\u60c5\u51b5\u975e\u5e38\u6709\u7528\u3002<\/p>\n<pre><code>db.collection.find({ name: \"John\" }).hint({ index: \"index_name\", filter: { age: { $gt: 18 } }, sort: { name: 1 } });\n<\/code><\/pre>\n<h2 id=\"%e5%a6%82%e4%bd%95%e9%80%89%e6%8b%a9%e9%80%82%e5%bd%93%e7%9a%84%e6%8f%90%e7%a4%ba%e7%b1%bb%e5%9e%8b%ef%bc%9f-iJFZjtDqva\">\u5982\u4f55\u9009\u62e9\u9002\u5f53\u7684\u63d0\u793a\u7c7b\u578b\uff1f<\/h2>\n<p>\u9009\u62e9\u9002\u5f53\u7684\u63d0\u793a\u7c7b\u578b\u53d6\u51b3\u4e8e\u60a8\u7684\u67e5\u8be2\u9700\u6c42\u548c\u6027\u80fd\u76ee\u6807\u3002\u5982\u679c\u60a8\u77e5\u9053\u67d0\u4e2a\u7279\u5b9a\u7684\u7d22\u5f15\u5bf9\u4e8e\u67e5\u8be2\u975e\u5e38\u6709\u6548\uff0c\u90a3\u4e48\u7d22\u5f15\u63d0\u793a\u53ef\u80fd\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u9009\u62e9\u3002\u5982\u679c\u60a8\u60f3\u6d4b\u8bd5\u4e0d\u540c\u67e5\u8be2\u8ba1\u5212\u7684\u6027\u80fd\uff0c\u6216\u8005\u9700\u8981\u66f4\u7cbe\u786e\u5730\u63a7\u5236\u67e5\u8be2\u6267\u884c\u8fc7\u7a0b\uff0c\u90a3\u4e48\u5f3a\u5236\u6267\u884c\u63d0\u793a\u6216\u67e5\u8be2\u8ba1\u5212\u63d0\u793a\u53ef\u80fd\u66f4\u9002\u5408\u60a8\u3002<\/p>\n<h2 id=\"%e7%bb%93%e8%ae%ba-iJFZjtDqva\">\u7ed3\u8bba<\/h2>\n<p>\u63d0\u793a\u662fMongoDB\u4e2d\u7684\u4e00\u79cd\u67e5\u8be2\u4f18\u5316\u6280\u672f\uff0c\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002\u7d22\u5f15\u63d0\u793a\u3001\u5f3a\u5236\u6267\u884c\u63d0\u793a\u548c\u67e5\u8be2\u8ba1\u5212\u63d0\u793a\u662f\u5e38\u89c1\u7684\u63d0\u793a\u7c7b\u578b\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u67e5\u8be2\u9700\u6c42\u548c\u6027\u80fd\u76ee\u6807\u9009\u62e9\u9002\u5f53\u7684\u63d0\u793a\u7c7b\u578b\u3002<\/p>\n<h2 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-iJFZjtDqva\">\u9999\u6e2f\u670d\u52a1\u5668\u9996\u9009\u540e\u6d6a\u4e91<\/h2>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5bfb\u627e\u53ef\u9760\u7684\u9999\u6e2f\u670d\u52a1\u5668\u63d0\u4f9b\u5546\uff0c\u540e\u6d6a\u4e91\u662f\u60a8\u7684\u9996\u9009\u3002\u540e\u6d6a\u4e91\u63d0\u4f9b\u9ad8\u6027\u80fd\u3001\u53ef\u9760\u6027\u548c\u5b89\u5168\u6027\u7684\u9999\u6e2f\u670d\u52a1\u5668\uff0c\u9002\u7528\u4e8e\u5404\u79cd\u5e94\u7528\u7a0b\u5e8f\u548c\u4e1a\u52a1\u9700\u6c42\u3002\u8bf7\u8bbf\u95ee\u6211\u4eec\u7684<a href=\"https:\/\/idc.net\">\u5b98\u7f51<\/a>\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MongoDB \u672f\u8bed - \u63d0\u793a MongoDB \u672f\u8bed - \u63d0\u793a \u4ec0\u4e48\u662fMongoDB\uff1f MongoDB\u662f\u4e00\u4e2a\u5f00 [&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-247374","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/247374","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=247374"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/247374\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=247374"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=247374"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=247374"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}