sp_changegroup (Transact-SQL)

Changes the role membership of a user in the current database.

Transact-SQL Syntax Conventions

sp_changegroup [ @grpname= ] 'role' 
     , [ @username = ] 'user'

• [ @grpname = ] 'role'
  Is the role to which the user is added. role is sysname, with no default. role must exist in the current database.

• [ @username = ] 'user'
  Is the user to add to the role. user is sysname, with no default. The user must already exist in the current database.

0 (success) or 1 (failure)

Roles provide a mechanism for managing the permissions applied to members of the role. When a user is added to a role, the user gains the permissions granted to the role.

When sp_changegroup is executed, the security account for user is added as a member of role, and removed from all other roles. To change role membership in a single role without affecting membership in other roles, use sp_addrolemember and sp_droprolemember.

New database users can be added to roles at the same time they are given access to the database with sp_adduser.

Every user is a member of the default role public.

sp_changegroup cannot be executed within a user-defined transaction.

Requires one of the following: membership in the db_owner fixed database role; membership in the db_securityadmin fixed database role; membership in the role that owns the role; ALTER permission on the role.

The following example makes the user Albert a member of the developers role.

EXEC sp_changegroup 'developers', 'Albert'

Security Stored Procedures (Transact-SQL)
sp_addrole (Transact-SQL)
sp_addrolemember (Transact-SQL)
sp_adduser (Transact-SQL)
sp_dropgroup (Transact-SQL)
sp_helpgroup (Transact-SQL)
System Stored Procedures (Transact-SQL)

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