[ @loginame = ] 'login'

Is the login to be removed. login is sysname, with no default. login must already exist in SQL Server.

0 (success) or 1 (failure)

sp_droplogin calls DROP LOGIN.

sp_droplogin cannot be executed within a user-defined transaction.

Requires ALTER ANY LOGIN permission on the server.

The following example uses DROP LOGIN to remove the login Victoria from an instance of SQL Server. This is the preferred method.

DROP LOGIN Victoria;
GO

Reference

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