Mongodb内嵌数组的完全匹配查询

Posted 2020-10-21 吃喝玩乐

样例数据：

{ 
    "cNo" : "11",
    "Details" : [
        {
             "dDate" : ISODate("2017-04-01T00:00:00.000+0800"),
             "bNo" : "No00000000497"
        },
        {
             "dDate" : ISODate("2017-05-01T00:00:00.000+0800"),
             "bNo" : "No00000000497"
        },
        {
            "dDate" : ISODate("2017-06-01T00:00:00.000+0800"),
             "bNo" : "No00000000497"
        }
    ]
}
{
    "cNo" : "12",    
    "Details" : [
        {
            "dDate" : ISODate("2017-04-01T00:00:00.000+0800"),
            "bNo" : "No00000000497"
        },
        {
            "dDate" : ISODate("2017-05-01T00:00:00.000+0800"),
            "bNo" : "No00000000497"
        },
        {
            "dDate" : ISODate("2017-06-01T00:00:00.000+0800"),
            "bNo" : "No00000000500"
        }
    ]
}
{ 
    "cNo" : "13",
    "Details" : [
        {
            "dDate" : ISODate("2017-04-01T00:00:00.000+0800"),
            "bNo" : "No00000000497"
        },
        {
            "dDate" : ISODate("2017-05-01T00:00:00.000+0800"),
            "bNo" : "No00000000497"
        },
         {
            "dDate" : ISODate("2017-06-01T00:00:00.000+0800"),
            "bNo" : "No00000000497"
        }
    ]
}

查询条件：dDate等于2017-06-01，且bNo等于No00000000497的数据

正确查询语句：{Details:{ $elemMatch:{ "bNo":"No00000000497","dDate":  ISODate("2017-10-01T00:00:00.000+0800") } }}

查询结果：11、13

(非完全匹配/错误)查询语句：{"Details.bNo":"No00000000497","Details.dDate":ISODate("2017-10-01T00:00:00.000+0800")}

查询结果：11、12、13