关于mongodb复杂查询的案例-创新互联
创新互联www.cdcxhl.cn八线动态BGP香港云服务器提供商,新人活动买多久送多久,划算不套路!
为恭城等地区用户提供了全套网页设计制作服务,及恭城网站建设行业解决方案。主营业务为成都网站制作、成都网站设计、恭城网站设计,以传统方式定制建设网站,并提供域名空间备案等一条龙服务,秉承以专业、用心的态度为用户提供真诚的服务。我们深信只要达到每一位用户的要求,就会得到认可,从而选择与我们长期合作。这样,我们也可以走得更远!这篇文章主要介绍关于mongodb复杂查询的案例,文中示例代码介绍的非常详细,具有一定的参考价值,感兴趣的小伙伴们一定要看完!
m内嵌文档复杂查询
1、数据结构
{ "_id":"1412243", "info":{ "data":[ { "broker_id":0, "receive_status":0, "house_id":"1412243", "gov_id":4127238, "owner_phone":"", "owner_name":"经纪人", "source_name":"中原地产", "source_logo":"/file/tupian/20230213/5a351abc8fe131513429692_80_80.png", "small_logo_url":"/file/tupian/20230213/5a351abbbca1b1513429691_32_32.png", "source":2, "house_type":"1", "pay_type":0, "renzheng":"", "header_pic":"", "receive_time":0, "city":7, "service_phone":"4008985666,133188", "house_source_desc":"房屋信息发布经纪人", "source_url":"https://tj.centanet.com/ershoufang/tjnk0007892545.html", "house_price":450, "fee":"0.00", "fee_new":"买方1% 卖方1%", "feedback_total":"", "feedback_content":[ ] }, { "broker_id":0, "receive_status":0, "house_id":"1412243", "gov_id":2964975, "owner_phone":"", "owner_name":"经纪人", "source_name":"链家地产", "source_logo":"/file/tupian/20230213/5a37669b7b3c21513580187_80_80.png", "small_logo_url":"/file/tupian/20230213/5a37669a87fc11513580186_32_32.png", "source":1, "house_type":"1", "pay_type":0, "renzheng":"", "header_pic":"", "receive_time":0, "city":7, "service_phone":"4008790056,7048", "house_source_desc":"房屋信息发布经纪人", "source_url":"http://tj.lianjia.com/ershoufang/101101622982.html", "house_price":450, "fee":"0.00", "fee_new":"买方2.5%", "feedback_total":"", "feedback_content":[ ] } ], "company_ids":4 }, "city_name":"天津", "city":"tj", "cityid":"7", "craw_date":"2018-06-30" }
2、db.books.find({"info.data":{"$elemMatch":{"owner_name":"经纪人","source_name":"中原地产"}}})
这种数据结构 info 是一个对象,data中是一个列表,使用上面的命令就可以把数据筛选出来。
如果info是一个列表,data也是一个列表
db.books.find({info:{"$elemMatch":{data:{"$elemMatch":{house_id:"2185216"}}}}})
使用上面的命令就能把数据筛选出来
以上是关于mongodb复杂查询的案例的所有内容,感谢各位的阅读!希望分享的内容对大家有帮助,更多相关知识,欢迎关注创新互联-成都网站建设公司行业资讯频道!
网页名称:关于mongodb复杂查询的案例-创新互联
当前网址:http://pwwzsj.com/article/cogcip.html