Question

我想找到匹配的所有文档，例如“conceptID”：“0161-1＃01-000001＃1”

{
    "_id" : ObjectId("59bc0bd77d7934a6a7243f05"),
    "definitionID" : "0161-1#DF-000001#1",
    "reference" : "FIIG=A23900 INC=62356",
    "dummy1" : "",
    "dummy2" : "",
    "dummy3" : "",
    "organisationID" : "0161-1#OG-002462#1",
    "languageID" : "0161-1#LG-000001#1",
    "statusTerm" : 0,
    "definitions" : [ 
        {
            "_id" : ObjectId("59bc34a67d7934a6a7c131cc"),
            "definitionID" : "0161-1#DF-000001#1",
            "conceptID" : "0161-1#01-000001#1",
            "definition" : "A metallic claw shaped pivoting item, designed to accelerate the weapon's recovery from recoil by assisting in realigning the breech with the barrel."
        }
    ]
}

我试过这个，但不起作用：find({definitions[0].conceptID: "0161-1#01-000001#1"})

Answer 1

如果要搜索特定索引，则需要在数组中提供索引，如下所示。

find({"definitions.0.conceptID":"0161-1#01-000001#1"})

否则，对于单键搜索，您可以使用

直接搜索

definitions.conceptID

Answer 2

使用$elemMatch

解决此问题

.find({definitions: { $elemMatch: {conceptID: "0161-1#01-000001#1"} }})

如何找到与MongoDB文档中的数组中的键值匹配的所有文档？

2 个答案: