The |
NULL
function generates null values. See NULL Function.isnull(Qty) |
Output: Returns true
if the value in the Qty
column is null.
isnull(column_string) |
Argument | Required? | Data Type | Description |
---|---|---|---|
column_string | Y | string | Name of column or string literal to be applied to the function |
Name of the column or string literal to be tested for null values.
Required? | Data Type | Example Value |
---|---|---|
Yes | String literal or column reference | myColumn |
Valid data type strings: