KEY_ID()

Returns the ID of a symmetric key in the current database.

Signature

Key_ID ( 'Key_Name' )

Examples

SELECT KEY_ID('ABerglundKey1');

NULL

SELECT KEY_ID('#ABerglundKey2');

NULL

Run against SQL Server 16.0.4265.3 on 2026-09-13. This is the output we got, not the documentation’s.

Available on

SQL Server 2017 and later
Azure SQL Database
Azure SQL Managed Instance
Fabric SQL database

Signature and description adapted from the Microsoft SQL documentation, used under the CC BY 4.0. SQL Server and Azure are trademarks of the Microsoft group of companies. This page is not affiliated with Microsoft.