MongoDB Query Selector Comparison Operators
Posted on July 17, 2015 in MongoDB by Matt Jennings
Explanation of MongoDB Query Operators
Quote from http://docs.mongodb.org/manual/reference/operator/ on July 17, 2015:
Query operators provide ways to locate data within the database and projection operators modify how data is presented.
Use the $gt Operator to Find Documents in the schools Collection with Students Great than 15
db.schools.find( { num_students: {$gt: 15} } ).pretty()
Other Comparison Operators
$eq
Matches values that are equal to a specified value.$gte
Matches values that are greater than a specified value.$lt
Matches values that are less than a specified value.$lte
Matches values that are less than or equal to a specified value.$ne
Matches all values that are not equal to a specified value.$in
Matches any of the values in a specified array.$nin
Matches none of the values specified in an array.