{"id":63696,"date":"2024-10-14T01:42:23","date_gmt":"2024-10-13T17:42:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/63696\/"},"modified":"2024-10-14T01:42:23","modified_gmt":"2024-10-13T17:42:23","slug":"mongodb%e8%a1%93%e8%aa%9e-%e6%93%8d%e4%bd%9c%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/63696\/","title":{"rendered":"MongoDB\u8853\u8a9e &#8211; \u64cd\u4f5c\u7b26"},"content":{"rendered":"<h1 id=\"mongodb%e8%a1%93%e8%aa%9e-%e6%93%8d%e4%bd%9c%e7%ac%a6-VRQXewMzEF\">MongoDB\u8853\u8a9e &#8211; \u64cd\u4f5c\u7b26<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cMongoDB\u56e0\u5176\u9748\u6d3b\u6027\u548c\u53ef\u64f4\u5c55\u6027\u800c\u53d7\u5230\u5ee3\u6cdb\u95dc\u6ce8\u3002\u4f5c\u70ba\u4e00\u7a2e\u6587\u6a94\u5c0e\u5411\u7684NoSQL\u6578\u64da\u5eab\uff0cMongoDB\u4f7f\u7528\u4e86\u4e00\u7cfb\u5217\u64cd\u4f5c\u7b26\u4f86\u9032\u884c\u6578\u64da\u67e5\u8a62\u548c\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eMongoDB\u4e2d\u7684\u4e3b\u8981\u64cd\u4f5c\u7b26\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f7f\u7528\u9019\u4e9b\u5de5\u5177\u3002<\/p>\n<h2 id=\"1-%e5%9f%ba%e6%9c%ac%e6%93%8d%e4%bd%9c%e7%ac%a6-VRQXewMzEF\">1. \u57fa\u672c\u64cd\u4f5c\u7b26<\/h2>\n<p>MongoDB\u7684\u64cd\u4f5c\u7b26\u4e3b\u8981\u5206\u70ba\u5e7e\u500b\u985e\u5225\uff0c\u5305\u62ec\u6bd4\u8f03\u64cd\u4f5c\u7b26\u3001\u908f\u8f2f\u64cd\u4f5c\u7b26\u3001\u4f4d\u5143\u64cd\u4f5c\u7b26\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u57fa\u672c\u64cd\u4f5c\u7b26\uff1a<\/p>\n<ul>\n<li><code>$eq<\/code>\uff1a\u7b49\u65bc\u64cd\u4f5c\u7b26\uff0c\u7528\u65bc\u67e5\u8a62\u7b49\u65bc\u67d0\u500b\u503c\u7684\u6587\u6a94\u3002<\/li>\n<li><code>$ne<\/code>\uff1a\u4e0d\u7b49\u65bc\u64cd\u4f5c\u7b26\uff0c\u7528\u65bc\u67e5\u8a62\u4e0d\u7b49\u65bc\u67d0\u500b\u503c\u7684\u6587\u6a94\u3002<\/li>\n<li><code>$gt<\/code>\uff1a\u5927\u65bc\u64cd\u4f5c\u7b26\uff0c\u7528\u65bc\u67e5\u8a62\u5927\u65bc\u67d0\u500b\u503c\u7684\u6587\u6a94\u3002<\/li>\n<li><code>$gte<\/code>\uff1a\u5927\u65bc\u6216\u7b49\u65bc\u64cd\u4f5c\u7b26\uff0c\u7528\u65bc\u67e5\u8a62\u5927\u65bc\u6216\u7b49\u65bc\u67d0\u500b\u503c\u7684\u6587\u6a94\u3002<\/li>\n<li><code>$lt<\/code>\uff1a\u5c0f\u65bc\u64cd\u4f5c\u7b26\uff0c\u7528\u65bc\u67e5\u8a62\u5c0f\u65bc\u67d0\u500b\u503c\u7684\u6587\u6a94\u3002<\/li>\n<li><code>$lte<\/code>\uff1a\u5c0f\u65bc\u6216\u7b49\u65bc\u64cd\u4f5c\u7b26\uff0c\u7528\u65bc\u67e5\u8a62\u5c0f\u65bc\u6216\u7b49\u65bc\u67d0\u500b\u503c\u7684\u6587\u6a94\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%af%84%e4%be%8b-VRQXewMzEF\">\u7bc4\u4f8b<\/h3>\n<pre><code>{\n    \"age\": { \"$gt\": 25 }\n}<\/code><\/pre>\n<p>\u4e0a\u8ff0\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u5e74\u9f61\u5927\u65bc25\u7684\u6587\u6a94\u3002<\/p>\n<h2 id=\"2-%e9%82%8f%e8%bc%af%e6%93%8d%e4%bd%9c%e7%ac%a6-VRQXewMzEF\">2. \u908f\u8f2f\u64cd\u4f5c\u7b26<\/h2>\n<p>\u908f\u8f2f\u64cd\u4f5c\u7b26\u7528\u65bc\u7d44\u5408\u591a\u500b\u67e5\u8a62\u689d\u4ef6\uff0c\u5e38\u898b\u7684\u908f\u8f2f\u64cd\u4f5c\u7b26\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>$and<\/code>\uff1a\u7528\u65bc\u540c\u6642\u6eff\u8db3\u591a\u500b\u689d\u4ef6\u3002<\/li>\n<li><code>$or<\/code>\uff1a\u7528\u65bc\u6eff\u8db3\u4efb\u4e00\u689d\u4ef6\u3002<\/li>\n<li><code>$not<\/code>\uff1a\u7528\u65bc\u53cd\u8f49\u67e5\u8a62\u689d\u4ef6\u3002<\/li>\n<li><code>$nor<\/code>\uff1a\u7528\u65bc\u67e5\u8a62\u4e0d\u6eff\u8db3\u4efb\u4f55\u689d\u4ef6\u7684\u6587\u6a94\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%af%84%e4%be%8b-VRQXewMzEF\">\u7bc4\u4f8b<\/h3>\n<pre><code>{\n    \"$or\": [\n        { \"age\": { \"$lt\": 20 } },\n        { \"age\": { \"$gt\": 60 } }\n    ]\n}<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u5e74\u9f61\u5c0f\u65bc20\u6216\u5927\u65bc60\u7684\u6587\u6a94\u3002<\/p>\n<h2 id=\"3-%e9%99%a3%e5%88%97%e6%93%8d%e4%bd%9c%e7%ac%a6-VRQXewMzEF\">3. \u9663\u5217\u64cd\u4f5c\u7b26<\/h2>\n<p>MongoDB\u9084\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5c08\u9580\u7528\u65bc\u8655\u7406\u9663\u5217\u7684\u64cd\u4f5c\u7b26\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><code>$in<\/code>\uff1a\u67e5\u8a62\u67d0\u500b\u5b57\u6bb5\u7684\u503c\u662f\u5426\u5728\u6307\u5b9a\u7684\u9663\u5217\u4e2d\u3002<\/li>\n<li><code>$nin<\/code>\uff1a\u67e5\u8a62\u67d0\u500b\u5b57\u6bb5\u7684\u503c\u662f\u5426\u4e0d\u5728\u6307\u5b9a\u7684\u9663\u5217\u4e2d\u3002<\/li>\n<li><code>$all<\/code>\uff1a\u67e5\u8a62\u67d0\u500b\u5b57\u6bb5\u7684\u9663\u5217\u662f\u5426\u5305\u542b\u6240\u6709\u6307\u5b9a\u7684\u503c\u3002<\/li>\n<li><code>$elemMatch<\/code>\uff1a\u67e5\u8a62\u9663\u5217\u4e2d\u7684\u6587\u6a94\u662f\u5426\u6eff\u8db3\u6307\u5b9a\u7684\u689d\u4ef6\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%af%84%e4%be%8b-VRQXewMzEF\">\u7bc4\u4f8b<\/h3>\n<pre><code>{\n    \"tags\": { \"$in\": [\"mongodb\", \"database\"] }\n}<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u5305\u542b\u6a19\u7c64\u201cmongodb\u201d\u6216\u201cdatabase\u201d\u7684\u6587\u6a94\u3002<\/p>\n<h2 id=\"4-%e6%9b%b4%e6%96%b0%e6%93%8d%e4%bd%9c%e7%ac%a6-VRQXewMzEF\">4. \u66f4\u65b0\u64cd\u4f5c\u7b26<\/h2>\n<p>\u5728MongoDB\u4e2d\uff0c\u66f4\u65b0\u64cd\u4f5c\u7b26\u7528\u65bc\u4fee\u6539\u73fe\u6709\u6587\u6a94\u7684\u5167\u5bb9\u3002\u5e38\u898b\u7684\u66f4\u65b0\u64cd\u4f5c\u7b26\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>$set<\/code>\uff1a\u8a2d\u7f6e\u67d0\u500b\u5b57\u6bb5\u7684\u503c\u3002<\/li>\n<li><code>$unset<\/code>\uff1a\u522a\u9664\u67d0\u500b\u5b57\u6bb5\u3002<\/li>\n<li><code>$inc<\/code>\uff1a\u5c0d\u67d0\u500b\u6578\u5b57\u5b57\u6bb5\u9032\u884c\u589e\u91cf\u66f4\u65b0\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%af%84%e4%be%8b-VRQXewMzEF\">\u7bc4\u4f8b<\/h3>\n<pre><code>{\n    \"$set\": { \"age\": 30 }\n}<\/code><\/pre>\n<p>\u9019\u500b\u66f4\u65b0\u64cd\u4f5c\u5c07\u628a\u6307\u5b9a\u6587\u6a94\u7684\u5e74\u9f61\u8a2d\u7f6e\u70ba30\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-VRQXewMzEF\">\u7e3d\u7d50<\/h2>\n<p>MongoDB\u7684\u64cd\u4f5c\u7b26\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u67e5\u8a62\u548c\u6578\u64da\u64cd\u4f5c\u80fd\u529b\u3002\u901a\u904e\u9748\u6d3b\u904b\u7528\u9019\u4e9b\u64cd\u4f5c\u7b26\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9ad8\u6548\u5730\u7ba1\u7406\u548c\u67e5\u8a62\u6578\u64da\u3002\u7121\u8ad6\u662f\u57fa\u672c\u7684\u6bd4\u8f03\u64cd\u4f5c\uff0c\u9084\u662f\u8907\u96dc\u7684\u908f\u8f2f\u7d44\u5408\uff0cMongoDB\u90fd\u80fd\u5920\u6eff\u8db3\u4e0d\u540c\u7684\u9700\u6c42\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u4f86\u652f\u6301\u60a8\u7684MongoDB\u61c9\u7528\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MongoDB\u8853\u8a9e\u4e2d\u7684\u64cd\u4f5c\u7b26\uff0c\u638c\u63e1\u67e5\u8a62\u3001\u66f4\u65b0\u548c\u6578\u64da\u8655\u7406\u7684\u95dc\u9375\u6982\u5ff5\uff0c\u63d0\u5347\u6578\u64da\u5eab\u7ba1\u7406\u6280\u80fd\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-63696","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/63696","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=63696"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/63696\/revisions"}],"predecessor-version":[{"id":63697,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/63696\/revisions\/63697"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=63696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=63696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=63696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}