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  • Mongodb复杂查询,总结

    内嵌文档复杂查询

    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":"http://file.zhugefang.com/5a351abc8fe131513429692_80_80.png",
                    "small_logo_url":"http://file.zhugefang.com/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":"http://file.zhugefang.com/5a37669b7b3c21513580187_80_80.png",
                    "small_logo_url":"http://file.zhugefang.com/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"
    }

    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

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  • 原文地址:https://www.cnblogs.com/ansheng/p/9258382.html
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