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lookup in mongodb array

Condemned Cottonmouth answered on December 28, 2020 Popularity 10/10 Helpfulness 5/10

answer lookup in mongodb array

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lookup in mongodb array

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> db.demo396.aggregate([
...    { "$lookup": {
...       "from": "demo395",
...       "let": { "details": "$details" },
...       "pipeline": [
...          { "$match": { "$expr": { "$in": [ "$_id", "$$details" ] } } }
...       ],
...       "as": "output"
...    }}
... ])

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: www.tutorialspoint.com

Tags: javascript lookup mongodb

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Contributed on Dec 28 2020

Condemned Cottonmouth

0 Answers Avg Quality 2/10

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lookup in mongodb array

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{ "_id" : ObjectId("5e5e787817aa3ef9ab8ab209"), "details" : [ ObjectId("5e5e782317aa3ef9ab8ab207"), ObjectId("5e5e782317aa3ef9ab8ab208") ], "output" : [ { "_id" : ObjectId("5e5e782317aa3ef9ab8ab207"), "Name" : "Chris" }, { "_id" : ObjectId("5e5e782317aa3ef9ab8ab208"), "Name" : "David" } ] }

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: www.tutorialspoint.com

Tags: javascript j

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Contributed on Dec 28 2020

Condemned Cottonmouth

0 Answers Avg Quality 2/10

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lookup in mongodb array

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