{"id":1093,"date":"2023-03-12T11:29:10","date_gmt":"2023-03-12T03:29:10","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1093"},"modified":"2023-04-29T11:28:00","modified_gmt":"2023-04-29T03:28:00","slug":"mongodb-sorting","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/03\/12\/mongodb-sorting\/","title":{"rendered":"MongoDB\u6392\u5e8f"},"content":{"rendered":"

MongoDB sort()\u65b9\u6cd5<\/h2>\n

\u5728MongoDB\u4e2d\u4f7f\u7528\u4f7f\u7528sort()\u65b9\u6cd5\u5bf9\u6570\u636e\u8fdb\u884c\u6392\u5e8f\uff0csort()\u65b9\u6cd5\u53ef\u4ee5\u901a\u8fc7\u53c2\u6570\u6307\u5b9a\u6392\u5e8f\u7684\u5b57\u6bb5\uff0c\u5e76\u4f7f\u7528 1 \u548c -1 \u6765\u6307\u5b9a\u6392\u5e8f\u7684\u65b9\u5f0f\uff0c\u5176\u4e2d 1 \u4e3a\u5347\u5e8f\u6392\u5217\uff0c\u800c-1\u662f\u7528\u4e8e\u964d\u5e8f\u6392\u5217\u3002<\/p>\n

<\/p>\n

\u8bed\u6cd5<\/strong><\/p>\n

sort()\u65b9\u6cd5\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n

> db.COLLECTION_NAME.find().sort({KEY:1})<\/code><\/pre>\n
\u5b9e\u4f8b<\/strong><\/p>\n
col \u96c6\u5408\u4e2d\u7684\u6570\u636e\u5982\u4e0b\uff1a<\/p>\n
> db.col.find()\n{ "_id" : ObjectId("5aefe63c2d2577acadf1e0d2"), "title" : "PHP", "description" : "PHP \u662f\u4e00\u79cd\u521b\u5efa\u52a8\u6001\u4ea4\u4e92\u6027\u7ad9\u70b9\u7684\u5f3a\u6709\u529b\u7684\u670d\u52a1\u5668\u7aef\u811a\u672c\u8bed\u8a00\u3002", "by" : "APP\u5f00\u53d1\u6280\u672f\u535a\u5ba2", "url" : "http:\/\/www.appblog.cn", "tags" : [ "php" ], "likes" : 200 }\n{ "_id" : ObjectId("5aefe6462d2577acadf1e0d3"), "title" : "Java", "description" : "Java \u662f\u7531Sun\u516c\u53f8\u4e8e1995\u5e745\u6708\u63a8\u51fa\u7684\u9ad8\u7ea7\u7a0b\u5e8f\u8bbe\u8ba1\u8bed\u8a00\u3002", "by" : "APP\u5f00\u53d1\u6280\u672f\u535a\u5ba2", "url" : "http:\/\/www.appblog.cn", "tags" : [ "java" ], "likes" : 150 }\n{ "_id" : ObjectId("5aefe64f2d2577acadf1e0d4"), "title" : "MongoDB", "description" : "MongoDB \u662f\u4e00\u4e2a Nosql \u6570\u636e\u5e93", "by" : "APP\u5f00\u53d1\u6280\u672f\u535a\u5ba2", "url" : "http:\/\/www.appblog.cn", "tags" : [ "mongodb" ], "likes" : 100 }<\/code><\/pre>\n
\u4ee5\u4e0b\u5b9e\u4f8b\u6f14\u793a\u4e86 col \u96c6\u5408\u4e2d\u7684\u6570\u636e\u6309\u5b57\u6bb5 likes \u7684\u964d\u5e8f\u6392\u5217\uff1a<\/p>\n
> db.col.find({},{"title":1,_id:0}).sort({"likes":-1})\n{ "title" : "PHP" }\n{ "title" : "Java" }\n{ "title" : "MongoDB" }\n> <\/code><\/pre>\n
\n
\u6ce8\uff1askip(), limilt(), sort()\u653e\u5728\u4e00\u8d77\u6267\u884c\u7684\u65f6\u5019\uff0c\u6267\u884c\u7684\u987a\u5e8f\u662f sort() -> skip() -> limit()<\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"
MongoDB sort()\u65b9\u6cd5 \u5728MongoDB\u4e2d\u4f7f\u7528\u4f7f\u7528sort()\u65b9\u6cd5\u5bf9\u6570\u636e\u8fdb\u884c\u6392\u5e8f\uff0csort()\u65b9\u6cd5\u53ef […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[300],"tags":[],"class_list":["post-1093","post","type-post","status-publish","format-standard","hentry","category-mongodb"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1093","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1093"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1093\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1093"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1093"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1093"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}