Amazon Redshift will no longer support the use of Python UDFs after June 30, 2026.
We will start enforcing it in phases. For more information on the details of Python end of life
and migration options, see the
blog post
Null condition
The null condition tests for nulls, when a value is missing or unknown.
Syntax
expression IS [ NOT ] NULL
Arguments
- expression
-
Any expression such as a column.
- IS NULL
-
Is true when the expression's value is null and false when it has a value.
- IS NOT NULL
-
Is false when the expression's value is null and true when it has a value.
Example
This example indicates how many times the SALES table contains null in the QTYSOLD field:
select count(*) from sales where qtysold is null; count ------- 0 (1 row)
