Returns the role name of the specified role ID.
role_name(role_id)
is the system role ID (srid) of the role. Role names are stored in syssrvroles.
select role_name(01)
------------------------------ sso_role
role_name, a system function, returns the role name.
ANSI SQL – Compliance level: Transact-SQL extension
Any user can execute role_name.
Documentation Transact-SQL Users Guide
Functions mut_excl_roles, proc_role, role_contain, role_id