IFNULL
Returns values dependent on if input values are null or not
IFNULL( value
)
Returns specified value if a value is null, returns specified else
value otherwise.
Arguments
Argument
Description
value
Value or column potentially containing nulls
then
Value to return if value
is null
else
Value to return if value
is not null
Output
Outputs a series of values depending on if an element is null or not
Example
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