Answers for "mongod find by key in an array of object"

mongo find documents that have a certain key

db.coll.find({"mykey":{'$exists': 1}})

Posted by: Guest on July-31-2020

find object in array mongodb

db.users.findOne({"_id": id},{awards: {$elemMatch: {award:'Turing Award', year:1977}}})

Posted by: Guest on January-04-2021

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