mongodb select specific fields
db.student.find({}, 'roll _id'); // <--- Just multiple fields name space separated
// OR
db.student.find({}).select('roll _id'); // <--- Just multiple fields name space separated
// OR
db.student.find({}, {'roll' : 1 , '_id' : 1 ); // <---- Old lengthy boring wayget only some fields of document in mongodb
db.student.find({}, {roll:1, _id:0})
same as SELECT roll FROM studentCopyright © 2021 Codeinu
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