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Mongo DB Comparison Operators

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  Author : Shailendra Chauhan
Posted On : 29 May 2015
Total Views : 7,329   
Updated On : 29 May 2015
 
In RDBMS, you can use comparison operators like as >, <, <=, and >= while writing a SQL query. Mongo shell also has same comparison operators but they are used with a different notation. Here is a comparison list of Mongo shell operators and SQL operators.

Mongo Shell Operators
SQL Operators
gt
>
lt
<
gte
>=
lte
<=

AND and OR Operators

Like RDBMS, MongoDB also supports OR and AND operators. You can use $or for an OR operator and $and for an AND operator.

db.users.find( { $or : [{lastname :"chauhan",lastname:"kumar"}] })
db.users.find( { $and : [{firstname :"deepak",lastname:"kumar"}] })
What do you think?
That’s it for now! I hope you get a good idea how to use Mongo shell comparison operators to query your mongo database. I would like to have feedback from my blog readers. Your valuable feedback, question, or comments about this article are always welcome.



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