MongoDB Query Language (MQL) Comparison Query Operators
Comparison query operators are used to compare values and create boolean expressions.
$cmp
The $cmp operator compares two values
$eq
The $eq query operator compares the value of a field to a specified value
$gt
The $gt query operator retrieves documents where the value of a field is greater than a specified value
$gte
The $gte operator retrieves documents where the value of a field is greater than or equal to a specified value
$in
The $in operator matches value of a field against an array of specified values
$lt
The $lt operator retrieves documents where the value of field is less than a specified value
$lte
The $lte operator retrieves documents where the value of a field is less than or equal to a specified value
$ne
The $ne operator retrieves documents where the value of a field doesn't equal a specified value
$nin
The $nin operator retrieves documents where the value of a field doesn't match a list of values