{"id":63776,"date":"2024-10-14T02:23:15","date_gmt":"2024-10-13T18:23:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/63776\/"},"modified":"2024-10-14T02:23:15","modified_gmt":"2024-10-13T18:23:15","slug":"mongodb%e8%a1%93%e8%aa%9e-%e5%8c%b9%e9%85%8d%e5%99%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/63776\/","title":{"rendered":"MongoDB\u8853\u8a9e &#8211; \u5339\u914d\u5668"},"content":{"rendered":"<h1 id=\"mongodb%e8%a1%93%e8%aa%9e-%e5%8c%b9%e9%85%8d%e5%99%a8-SuTDdPUkwl\">MongoDB\u8853\u8a9e &#8211; \u5339\u914d\u5668<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cMongoDB\u4f5c\u70ba\u4e00\u7a2e\u6d41\u884c\u7684NoSQL\u6578\u64da\u5eab\uff0c\u5df2\u7d93\u6210\u70ba\u8a31\u591a\u958b\u767c\u8005\u548c\u4f01\u696d\u7684\u9996\u9078\u3002MongoDB\u7684\u9748\u6d3b\u6027\u548c\u53ef\u64f4\u5c55\u6027\u4f7f\u5176\u9069\u5408\u5404\u7a2e\u61c9\u7528\u5834\u666f\uff0c\u800c\u5176\u67e5\u8a62\u8a9e\u8a00\u4e2d\u7684\u201c\u5339\u914d\u5668\u201d\u5247\u662f\u9032\u884c\u6578\u64da\u6aa2\u7d22\u7684\u95dc\u9375\u5de5\u5177\u4e4b\u4e00\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eMongoDB\u4e2d\u7684\u5339\u914d\u5668\u53ca\u5176\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%8c%b9%e9%85%8d%e5%99%a8%ef%bc%9f-SuTDdPUkwl\">\u4ec0\u9ebc\u662f\u5339\u914d\u5668\uff1f<\/h2>\n<p>\u5728MongoDB\u4e2d\uff0c\u5339\u914d\u5668\uff08Query Operators\uff09\u662f\u7528\u4f86\u6307\u5b9a\u67e5\u8a62\u689d\u4ef6\u7684\u5de5\u5177\u3002\u5b83\u5011\u5141\u8a31\u7528\u6236\u5728\u6578\u64da\u5eab\u4e2d\u67e5\u627e\u7b26\u5408\u7279\u5b9a\u689d\u4ef6\u7684\u6587\u6a94\u3002\u5339\u914d\u5668\u53ef\u4ee5\u7528\u65bc\u5404\u7a2e\u67e5\u8a62\u64cd\u4f5c\uff0c\u5305\u62ec\u67e5\u627e\u3001\u66f4\u65b0\u548c\u522a\u9664\u7b49\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84%e5%8c%b9%e9%85%8d%e5%99%a8%e9%a1%9e%e5%9e%8b-SuTDdPUkwl\">\u5e38\u898b\u7684\u5339\u914d\u5668\u985e\u578b<\/h2>\n<p>MongoDB\u63d0\u4f9b\u4e86\u591a\u7a2e\u5339\u914d\u5668\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6700\u5e38\u7528\u7684\u5339\u914d\u5668\uff1a<\/p>\n<ul>\n<li><code>$eq<\/code>\uff1a\u7b49\u65bc\u5339\u914d\u5668\uff0c\u7528\u65bc\u67e5\u627e\u7b49\u65bc\u6307\u5b9a\u503c\u7684\u6587\u6a94\u3002<\/li>\n<li><code>$ne<\/code>\uff1a\u4e0d\u7b49\u65bc\u5339\u914d\u5668\uff0c\u7528\u65bc\u67e5\u627e\u4e0d\u7b49\u65bc\u6307\u5b9a\u503c\u7684\u6587\u6a94\u3002<\/li>\n<li><code>$gt<\/code>\uff1a\u5927\u65bc\u5339\u914d\u5668\uff0c\u7528\u65bc\u67e5\u627e\u5927\u65bc\u6307\u5b9a\u503c\u7684\u6587\u6a94\u3002<\/li>\n<li><code>$gte<\/code>\uff1a\u5927\u65bc\u6216\u7b49\u65bc\u5339\u914d\u5668\uff0c\u7528\u65bc\u67e5\u627e\u5927\u65bc\u6216\u7b49\u65bc\u6307\u5b9a\u503c\u7684\u6587\u6a94\u3002<\/li>\n<li><code>$lt<\/code>\uff1a\u5c0f\u65bc\u5339\u914d\u5668\uff0c\u7528\u65bc\u67e5\u627e\u5c0f\u65bc\u6307\u5b9a\u503c\u7684\u6587\u6a94\u3002<\/li>\n<li><code>$lte<\/code>\uff1a\u5c0f\u65bc\u6216\u7b49\u65bc\u5339\u914d\u5668\uff0c\u7528\u65bc\u67e5\u627e\u5c0f\u65bc\u6216\u7b49\u65bc\u6307\u5b9a\u503c\u7684\u6587\u6a94\u3002<\/li>\n<li><code>$in<\/code>\uff1a\u5305\u542b\u5339\u914d\u5668\uff0c\u7528\u65bc\u67e5\u627e\u5b57\u6bb5\u503c\u5728\u6307\u5b9a\u6578\u7d44\u4e2d\u7684\u6587\u6a94\u3002<\/li>\n<li><code>$nin<\/code>\uff1a\u4e0d\u5305\u542b\u5339\u914d\u5668\uff0c\u7528\u65bc\u67e5\u627e\u5b57\u6bb5\u503c\u4e0d\u5728\u6307\u5b9a\u6578\u7d44\u4e2d\u7684\u6587\u6a94\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%8c%b9%e9%85%8d%e5%99%a8%e7%9a%84%e7%af%84%e4%be%8b-SuTDdPUkwl\">\u4f7f\u7528\u5339\u914d\u5668\u7684\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528\u5339\u914d\u5668\u7684\u7c21\u55ae\u7bc4\u4f8b\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u201cusers\u201d\u7684\u96c6\u5408\uff0c\u4e26\u5e0c\u671b\u67e5\u627e\u5e74\u9f61\u5927\u65bc25\u7684\u7528\u6236\uff1a<\/p>\n<pre><code>\ndb.users.find({ age: { $gt: 25 } })\n<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u5e74\u9f61\u5927\u65bc25\u7684\u7528\u6236\u6587\u6a94\u3002<\/p>\n<h2 id=\"%e8%a4%87%e5%90%88%e6%9f%a5%e8%a9%a2-SuTDdPUkwl\">\u8907\u5408\u67e5\u8a62<\/h2>\n<p>MongoDB\u7684\u5339\u914d\u5668\u9084\u652f\u6301\u8907\u5408\u67e5\u8a62\uff0c\u9019\u610f\u5473\u8457\u53ef\u4ee5\u540c\u6642\u4f7f\u7528\u591a\u500b\u5339\u914d\u5668\u4f86\u7cbe\u78ba\u67e5\u627e\u6240\u9700\u7684\u6578\u64da\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u60f3\u67e5\u627e\u5e74\u9f61\u572820\u523030\u6b72\u4e4b\u9593\u7684\u7528\u6236\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n<pre><code>\ndb.users.find({ age: { $gte: 20, $lte: 30 } })\n<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u5e74\u9f61\u572820\u523030\u6b72\u4e4b\u9593\u7684\u7528\u6236\u6587\u6a94\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-SuTDdPUkwl\">\u7d50\u8ad6<\/h2>\n<p>MongoDB\u7684\u5339\u914d\u5668\u662f\u9032\u884c\u6578\u64da\u6aa2\u7d22\u7684\u91cd\u8981\u5de5\u5177\uff0c\u901a\u904e\u9748\u6d3b\u7684\u67e5\u8a62\u689d\u4ef6\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9ad8\u6548\u5730\u5f9e\u6578\u64da\u5eab\u4e2d\u7372\u53d6\u6240\u9700\u7684\u4fe1\u606f\u3002\u7121\u8ad6\u662f\u7c21\u55ae\u7684\u67e5\u8a62\u9084\u662f\u8907\u96dc\u7684\u689d\u4ef6\u7d44\u5408\uff0c\u5339\u914d\u5668\u90fd\u80fd\u63d0\u4f9b\u5f37\u5927\u7684\u652f\u6301\u3002\u5c0d\u65bc\u5e0c\u671b\u5728\u6578\u64da\u7ba1\u7406\u4e0a\u7372\u5f97\u66f4\u9ad8\u6548\u7387\u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u6df1\u5165\u7406\u89e3\u548c\u904b\u7528\u9019\u4e9b\u5339\u914d\u5668\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bcMongoDB\u6216\u5176\u4ed6\u6578\u64da\u5eab\u6280\u8853\u6709\u8208\u8da3\uff0c\u4e26\u5e0c\u671b\u5c0b\u627e\u5408\u9069\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u60a8\u53ef\u4ee5\u8003\u616e\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">VPS<\/a> \u670d\u52d9\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MongoDB\u4e2d\u7684\u5339\u914d\u5668\u8853\u8a9e\uff0c\u63a2\u7d22\u5982\u4f55\u4f7f\u7528\u5b83\u5011\u9032\u884c\u9ad8\u6548\u7684\u6578\u64da\u67e5\u8a62\u548c\u904e\u6ffe\uff0c\u63d0\u5347\u6578\u64da\u64cd\u4f5c\u80fd\u529b\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-63776","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/63776","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=63776"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/63776\/revisions"}],"predecessor-version":[{"id":63777,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/63776\/revisions\/63777"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=63776"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=63776"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=63776"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}