mongoDB : Sort documents

“sort” method is used to sort documents. To specify sorting order 1 and -1 are used. 1 is used for ascending order while -1 is used for descending order.

Syntax

db.collection_name.find().sort({KEY:1})

> db.employee.find()
{ "_id" : ObjectId("54b348e01deb1f5f980626a2"), "id" : 1, "firstName" : "Joel", "lastName" : "chelli" }
{ "_id" : ObjectId("54b348e01deb1f5f980626a3"), "id" : 2, "firstName" : "Ananad", "lastName" : "Bandaru" }
{ "_id" : ObjectId("54b348e01deb1f5f980626a4"), "id" : 3, "firstName" : "Gopi", "lastName" : "Battu" }
{ "_id" : ObjectId("54b348e01deb1f5f980626a5"), "id" : 4, "firstName" : "Ritwik", "lastName" : "Mohenthy" }
>
>
> db.employee.find().sort({"firstName" : 1, "lastName" : -1})
{ "_id" : ObjectId("54b348e01deb1f5f980626a3"), "id" : 2, "firstName" : "Ananad", "lastName" : "Bandaru" }
{ "_id" : ObjectId("54b348e01deb1f5f980626a4"), "id" : 3, "firstName" : "Gopi", "lastName" : "Battu" }
{ "_id" : ObjectId("54b348e01deb1f5f980626a2"), "id" : 1, "firstName" : "Joel", "lastName" : "chelli" }
{ "_id" : ObjectId("54b348e01deb1f5f980626a5"), "id" : 4, "firstName" : "Ritwik", "lastName" : "Mohenthy" }
>
>
> db.employee.find().sort({"lastName" : -1})
{ "_id" : ObjectId("54b348e01deb1f5f980626a2"), "id" : 1, "firstName" : "Joel", "lastName" : "chelli" }
{ "_id" : ObjectId("54b348e01deb1f5f980626a5"), "id" : 4, "firstName" : "Ritwik", "lastName" : "Mohenthy" }
{ "_id" : ObjectId("54b348e01deb1f5f980626a4"), "id" : 3, "firstName" : "Gopi", "lastName" : "Battu" }
{ "_id" : ObjectId("54b348e01deb1f5f980626a3"), "id" : 2, "firstName" : "Ananad", "lastName" : "Bandaru" }

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