mongodb project all fields
db.collection.aggregate([
{ "$addFields": { "custom_field": "$obj.obj_field1" } }
])mongodb project all fields
db.collection.aggregate([
{ "$addFields": { "custom_field": "$obj.obj_field1" } }
])MONGODB AGGREGATION tutorials
db.stocks.insertMany([
{ name: "Infosys", qty: 100, price: 800 },
{ name: "TCS", qty: 100, price: 2000 },
{ name: "Wipro", qty: 2500, price: 300 }
])MONGODB AGGREGATION tutorials
db.stocks.find().pretty()Copyright © 2021 Codeinu
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