isnotnull()
Returns true if the argument is not null.
Syntax
isnotnull([value])
notnull([value]) - alias for isnotnull
Example
T | where isnotnull(PossiblyNull) | count
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Returns true if the argument is not null.
isnotnull([value])
notnull([value]) - alias for isnotnull
T | where isnotnull(PossiblyNull) | count