ALTER ROLE (Transact-SQL)
Changes the name of a database role.
Changing the name of a database role does not change ID number, owner, or permissions of the role.
Database roles are visible in the sys.database_role_members and sys.database_principals catalog views.
|In SQL Server 2005 the behavior of schemas is changed from the behavior in earlier versions of SQL Server. Code that assumes that schemas are equivalent to database users may not return correct results. Old catalog views, including sysobjects, should not be used in a database in which any of the following DDL statements has ever been used: CREATE SCHEMA, ALTER SCHEMA, DROP SCHEMA, CREATE USER, ALTER USER, DROP USER, CREATE ROLE, ALTER ROLE, DROP ROLE, CREATE APPROLE, ALTER APPROLE, DROP APPROLE, ALTER AUTHORIZATION. In a database in which any of these statements has ever been used, you must use the new catalog views. The new catalog views take into account the separation of principals and schemas that is introduced in SQL Server 2005. For more information about catalog views, see Catalog Views (Transact-SQL).|
The following example changes the name of role
USE AdventureWorks; ALTER ROLE buyers WITH NAME = purchasing; GO