Which of the following returns a substring of a string? – McqOptions

MCQOPTIONS

1.	Which of the following returns a substring of a string?
A.	$subs
B.	$substring
C.	$substr
D.	None of the mentioned
Answer» D. None of the mentioned

Discussion

No Comment Found

Related MCQs

MongoDB treats the literals as projection flags, valid only in the _______ stage.
To avoid treating numeric or boolean literals as projection flags, use the _______ expression to wrap the numeric or boolean literals.
________ applies an expression to each item in an array and returns an array with the applied results.
Which of the following stages cannot appear multiple times in a pipeline?
Which of the following returns the value that results from applying an expression to the last document?
$setIsSubset returns _______ if all elements of the first set appear in the second set, including when the first set equals the second set.
In MongoDB __________ mongos retrieves the results from each shard, performs a merge sort to order the results.
You can only use jsMode for result sets with fewer than 500,000 distinct key arguments to the mapper’s _______ function.
Which of the following mode defaults to false?
$allElementsTrue returns true if no element of a set evaluates to ____________