JavaMadeSoEasy.com (JMSE): find document where firstName length is greater (>) in MongoDB

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find document where firstName length is greater (>) than 3

First, Let's create new collection and insert document in it >

> db.employee.insert({_id : 1, firstName:"ankit"})

> db.employee.insert({_id : 2, firstName:"ankit", salary : 1000 })

> db.employee.insert({_id : 3, firstName:"sam", salary : 2000 })

> db.employee.insert({_id : 4, firstName:"neh", salary : 3000 })

First line above will create table (or collection) (if table already exists it will insert documents in it).

Let’s find document where firstName length is greater (>) than 3

> db.employee.find({ $where:"this.firstName.length > 3"})

Output>

{ "_id" : 1, "firstName" : "ankit" }

{ "_id" : 2, "firstName" : "ankit", "salary" : "1000" }

SUMMARY>

So in this mongoDB tutorial we learned how to find document where firstName length is greater (>) in MongoDB.

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Labels: MongoDB Query MongoDB