coalesce - script and chart function
The coalesce function returns the first of the parameters that has a valid non-NULL representation. Any number of parameters can be used.
Syntax:
coalesce(expr1[ , expr2 , expr3 , ...])
Arguments:
Argument | Description |
---|---|
expr1 | The first expression to check for a valid non-NULL representation. |
expr2 | The second expression to check for a valid non-NULL representation. |
expr3 | The third expression to check for a valid non-NULL representation. |