Mongodb greater than query

Question

I have an employee collection like this

After using

db.employee.find({Employees : {$gte : 200}}) 

I don't get any data. The Employees field type is a string.

Answer 1

First things first you cannot have a range inside your string datatype. You have to split your Employees’ field into two separate fields(employees_from and employees_to). For performing the above implementation, you can use Mongo’s MapReduce for splitting the field into two separate fields. Then you can read your data with the help of the following code:

db.employee.find({employees_from : {$gte : 200}})

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