# Null Functions
<a name="sql-reference-null-functions"></a>

The topics in this section describe the null functions for Amazon Kinesis Data Analytics streaming SQL.

**Topics**
+ [COALESCE](sql-reference-coalesce.md)
+ [NULLIF](sql-reference-nullif.md)

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for AWS Kinesis Data Analytics. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query kinesisanalytics` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).