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AND condition - using $and operator on document in collection in MongoDB

OR condition - using $or operator on document in collection in MongoDB

GREATER THAN (>) and GREATER THAN EQUALS (>=) conditions - using $where, $gt and $gte operator in MongoDB

LESS THAN (<) and LESS THAN EQUALS (<=) - using $where, $lt and $lte operator in MongoDB

Use AND and OR condition > using $and operator and $or operator in MongoDB

EQUALS (=) and NOT EQUALS (!=) conditions - using $where, $eq and $ne operator in MongoDB

$push operator in MongoDB

ifnull - Print message not found rather than null if field is null in MongoDB

$type aggregation operator in MongoDB - To display type of the field in document

How to use IF ELSE in MongoDB

$sum operator - sum of salary by group in MongoDB

count() Method - Find count of all employee in collection in MongoDB

Find count of all employee by group in collection in MongoDB

$avg operator - average of salary by group in MongoDB

$min operator - Find minimum value from documents in MongoDB

$max operator in MongoDB - Find maximum value from documents

$stdDevPop operator in MongoDB - Find standard deviation from documents

$last operator in MongoDB

$first operator in MongoDB

How to retrieve only specific element from an array in MongoDB - Using $elemMatch operator