{"id":247416,"date":"2024-01-02T21:58:26","date_gmt":"2024-01-02T13:58:26","guid":{"rendered":"https:\/\/www.idc.net\/help\/247416\/"},"modified":"2024-01-02T21:58:26","modified_gmt":"2024-01-02T13:58:26","slug":"mongodb-%e6%9c%af%e8%af%ad-%e5%8c%b9%e9%85%8d%e5%99%a8","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/247416\/","title":{"rendered":"MongoDB \u672f\u8bed &#8211; \u5339\u914d\u5668"},"content":{"rendered":"<p><title id=\"mongodb-%e6%9c%af%e8%af%ad-%e5%8c%b9%e9%85%8d%e5%99%a8-tPZRFTFmpT\">MongoDB \u672f\u8bed - \u5339\u914d\u5668<\/title><\/p>\n<h1 id=\"mongodb-%e6%9c%af%e8%af%ad-%e5%8c%b9%e9%85%8d%e5%99%a8-tPZRFTFmpT\">MongoDB \u672f\u8bed - \u5339\u914d\u5668<\/h1>\n<p>\u5728MongoDB\u4e2d\uff0c\u5339\u914d\u5668\uff08Matcher\uff09\u662f\u7528\u4e8e\u67e5\u8be2\u548c\u7b5b\u9009\u6587\u6863\u7684\u91cd\u8981\u5de5\u5177\u3002\u5339\u914d\u5668\u5141\u8bb8\u60a8\u6307\u5b9a\u67e5\u8be2\u6761\u4ef6\uff0c\u4ee5\u4fbf\u4ece\u96c6\u5408\u4e2d\u68c0\u7d22\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u7684\u6587\u6863\u3002<\/p>\n<h2 id=\"%e5%9f%ba%e6%9c%ac%e5%8c%b9%e9%85%8d%e5%99%a8-tPZRFTFmpT\">\u57fa\u672c\u5339\u914d\u5668<\/h2>\n<p>\u4ee5\u4e0b\u662fMongoDB\u4e2d\u5e38\u7528\u7684\u57fa\u672c\u5339\u914d\u5668\uff1a<\/p>\n<ul>\n<li><strong>$eq\uff1a<\/strong>\u7528\u4e8e\u5339\u914d\u5b57\u6bb5\u503c\u7b49\u4e8e\u6307\u5b9a\u503c\u7684\u6587\u6863\u3002<\/li>\n<li><strong>$ne\uff1a<\/strong>\u7528\u4e8e\u5339\u914d\u5b57\u6bb5\u503c\u4e0d\u7b49\u4e8e\u6307\u5b9a\u503c\u7684\u6587\u6863\u3002<\/li>\n<li><strong>$gt\uff1a<\/strong>\u7528\u4e8e\u5339\u914d\u5b57\u6bb5\u503c\u5927\u4e8e\u6307\u5b9a\u503c\u7684\u6587\u6863\u3002<\/li>\n<li><strong>$gte\uff1a<\/strong>\u7528\u4e8e\u5339\u914d\u5b57\u6bb5\u503c\u5927\u4e8e\u6216\u7b49\u4e8e\u6307\u5b9a\u503c\u7684\u6587\u6863\u3002<\/li>\n<li><strong>$lt\uff1a<\/strong>\u7528\u4e8e\u5339\u914d\u5b57\u6bb5\u503c\u5c0f\u4e8e\u6307\u5b9a\u503c\u7684\u6587\u6863\u3002<\/li>\n<li><strong>$lte\uff1a<\/strong>\u7528\u4e8e\u5339\u914d\u5b57\u6bb5\u503c\u5c0f\u4e8e\u6216\u7b49\u4e8e\u6307\u5b9a\u503c\u7684\u6587\u6863\u3002<\/li>\n<li><strong>$in\uff1a<\/strong>\u7528\u4e8e\u5339\u914d\u5b57\u6bb5\u503c\u5728\u6307\u5b9a\u6570\u7ec4\u4e2d\u7684\u6587\u6863\u3002<\/li>\n<li><strong>$nin\uff1a<\/strong>\u7528\u4e8e\u5339\u914d\u5b57\u6bb5\u503c\u4e0d\u5728\u6307\u5b9a\u6570\u7ec4\u4e2d\u7684\u6587\u6863\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%80%bb%e8%be%91%e5%8c%b9%e9%85%8d%e5%99%a8-tPZRFTFmpT\">\u903b\u8f91\u5339\u914d\u5668<\/h2>\n<p>\u903b\u8f91\u5339\u914d\u5668\u5141\u8bb8\u60a8\u5728\u67e5\u8be2\u4e2d\u4f7f\u7528\u903b\u8f91\u8fd0\u7b97\u7b26\u6765\u7ec4\u5408\u591a\u4e2a\u6761\u4ef6\u3002<\/p>\n<ul>\n<li><strong>$and\uff1a<\/strong>\u7528\u4e8e\u540c\u65f6\u6ee1\u8db3\u591a\u4e2a\u6761\u4ef6\u7684\u6587\u6863\u3002<\/li>\n<li><strong>$or\uff1a<\/strong>\u7528\u4e8e\u6ee1\u8db3\u4efb\u610f\u4e00\u4e2a\u6761\u4ef6\u7684\u6587\u6863\u3002<\/li>\n<li><strong>$not\uff1a<\/strong>\u7528\u4e8e\u4e0d\u6ee1\u8db3\u6307\u5b9a\u6761\u4ef6\u7684\u6587\u6863\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%85%83%e7%b4%a0%e5%8c%b9%e9%85%8d%e5%99%a8-tPZRFTFmpT\">\u5143\u7d20\u5339\u914d\u5668<\/h2>\n<p>\u5143\u7d20\u5339\u914d\u5668\u7528\u4e8e\u5339\u914d\u6587\u6863\u4e2d\u662f\u5426\u5b58\u5728\u6307\u5b9a\u5b57\u6bb5\u3002<\/p>\n<ul>\n<li><strong>$exists\uff1a<\/strong>\u7528\u4e8e\u5339\u914d\u5b58\u5728\u6216\u4e0d\u5b58\u5728\u6307\u5b9a\u5b57\u6bb5\u7684\u6587\u6863\u3002<\/li>\n<li><strong>$type\uff1a<\/strong>\u7528\u4e8e\u5339\u914d\u6307\u5b9a\u5b57\u6bb5\u7c7b\u578b\u7684\u6587\u6863\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%ad%a3%e5%88%99%e8%a1%a8%e8%be%be%e5%bc%8f%e5%8c%b9%e9%85%8d%e5%99%a8-tPZRFTFmpT\">\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u5668<\/h2>\n<p>\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u5668\u5141\u8bb8\u60a8\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u5339\u914d\u5b57\u6bb5\u503c\u3002<\/p>\n<ul>\n<li><strong>$regex\uff1a<\/strong>\u7528\u4e8e\u5339\u914d\u6ee1\u8db3\u6307\u5b9a\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u6587\u6863\u3002<\/li>\n<li><strong>$options\uff1a<\/strong>\u7528\u4e8e\u6307\u5b9a\u6b63\u5219\u8868\u8fbe\u5f0f\u9009\u9879\uff0c\u5982\u5927\u5c0f\u5199\u654f\u611f\u7b49\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b0%e7%bb%84%e5%8c%b9%e9%85%8d%e5%99%a8-tPZRFTFmpT\">\u6570\u7ec4\u5339\u914d\u5668<\/h2>\n<p>\u6570\u7ec4\u5339\u914d\u5668\u7528\u4e8e\u5339\u914d\u6570\u7ec4\u5b57\u6bb5\u4e2d\u7684\u5143\u7d20\u3002<\/p>\n<ul>\n<li><strong>$all\uff1a<\/strong>\u7528\u4e8e\u5339\u914d\u5305\u542b\u6307\u5b9a\u6240\u6709\u5143\u7d20\u7684\u6587\u6863\u3002<\/li>\n<li><strong>$elemMatch\uff1a<\/strong>\u7528\u4e8e\u5339\u914d\u6570\u7ec4\u4e2d\u6ee1\u8db3\u6307\u5b9a\u6761\u4ef6\u7684\u5143\u7d20\u3002<\/li>\n<li><strong>$size\uff1a<\/strong>\u7528\u4e8e\u5339\u914d\u6570\u7ec4\u957f\u5ea6\u7b49\u4e8e\u6307\u5b9a\u503c\u7684\u6587\u6863\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%8a%95%e5%bd%b1%e5%8c%b9%e9%85%8d%e5%99%a8-tPZRFTFmpT\">\u6295\u5f71\u5339\u914d\u5668<\/h2>\n<p>\u6295\u5f71\u5339\u914d\u5668\u7528\u4e8e\u6307\u5b9a\u67e5\u8be2\u7ed3\u679c\u4e2d\u8fd4\u56de\u7684\u5b57\u6bb5\u3002<\/p>\n<ul>\n<li><strong>$elemMatch\uff1a<\/strong>\u7528\u4e8e\u8fd4\u56de\u6570\u7ec4\u4e2d\u6ee1\u8db3\u6307\u5b9a\u6761\u4ef6\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002<\/li>\n<li><strong>$slice\uff1a<\/strong>\u7528\u4e8e\u8fd4\u56de\u6570\u7ec4\u4e2d\u6ee1\u8db3\u6307\u5b9a\u6761\u4ef6\u7684\u5143\u7d20\u5b50\u96c6\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u662fMongoDB\u4e2d\u5e38\u7528\u7684\u5339\u914d\u5668\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u5339\u914d\u5668\u6765\u67e5\u8be2\u548c\u7b5b\u9009\u6587\u6863\u3002<\/p>\n<h2 id=\"%e6%80%bb%e7%bb%93-tPZRFTFmpT\">\u603b\u7ed3<\/h2>\n<p>\u5728MongoDB\u4e2d\uff0c\u5339\u914d\u5668\u662f\u7528\u4e8e\u67e5\u8be2\u548c\u7b5b\u9009\u6587\u6863\u7684\u91cd\u8981\u5de5\u5177\u3002\u901a\u8fc7\u4f7f\u7528\u4e0d\u540c\u7684\u5339\u914d\u5668\uff0c\u60a8\u53ef\u4ee5\u6307\u5b9a\u67e5\u8be2\u6761\u4ef6\uff0c\u4ece\u96c6\u5408\u4e2d\u68c0\u7d22\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u7684\u6587\u6863\u3002\u4e86\u89e3\u548c\u719f\u7ec3\u4f7f\u7528\u5404\u79cd\u5339\u914d\u5668\u5bf9\u4e8e\u6709\u6548\u5730\u4f7f\u7528MongoDB\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5bfb\u627e\u9ad8\u6027\u80fd\u7684\u9999\u6e2f\u670d\u52a1\u5668\uff0c\u540e\u6d6a\u4e91\u662f\u60a8\u7684\u9996\u9009\u3002\u6211\u4eec\u63d0\u4f9b\u53ef\u9760\u7a33\u5b9a\u7684\u9999\u6e2f\u670d\u52a1\u5668\uff0c\u4ee5\u6ee1\u8db3\u60a8\u7684\u5404\u79cd\u9700\u6c42\u3002\u60a8\u53ef\u4ee5\u8bbf\u95ee\u6211\u4eec\u7684\u5b98\u7f51\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff1a<a href=\"https:\/\/idc.net\">https:\/\/idc.net<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MongoDB \u672f\u8bed - \u5339\u914d\u5668 MongoDB \u672f\u8bed - \u5339\u914d\u5668 \u5728MongoDB\u4e2d\uff0c\u5339\u914d\u5668\uff08Matcher [&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-247416","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/247416","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=247416"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/247416\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=247416"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=247416"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=247416"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}