DROP SIGNATURE (Transact-SQL)
Applies To: SQL Server 2014, SQL Server 2016 Preview
Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).
Drops a digital signature from a stored procedure, function, trigger, or assembly.
Applies to: SQL Server (SQL Server 2008 through current version), Azure SQL Database.
The following example removes the signature of certificate HumanResourcesDP from the stored procedure HumanResources.uspUpdateEmployeeLogin.
USE AdventureWorks2012; DROP SIGNATURE FROM HumanResources.uspUpdateEmployeeLogin BY CERTIFICATE HumanResourcesDP; GO