Returns Either The Nonnull Result Of The First Expression #618
___________ returns either the non-null result of the first expression.
This multiple choice question (MCQ) is related to the book/course
gs gs112 MongoDB.
It can also be found in
gs gs112 Aggregation Concepts and Aggregation Mechanics - Pipeline Operators - Quiz No.1.
___________ returns either the non-null result of the first expression.
$Null
$ifNull
$ElseNull
None of the mentioned
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GridFS, BSON Datatype and Administration Concepts - BSON - Quiz No.1
gs gs112 MongoDB
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