The following functions return information that is useful in managing security.
CURRENT_USER (Transact-SQL)
SCHEMA_ID (Transact-SQL)
DATABASE_PRINCIPAL_ID (Transact-SQL)
SCHEMA_NAME (Transact-SQL)
sys.fn_builtin_permissions (Transact-SQL)
SESSION_USER (Transact-SQL)
sys.fn_my_permissions (Transact-SQL)
SETUSER (Transact-SQL)
HAS_PERMS_BY_NAME (Transact-SQL)
SUSER_ID (Transact-SQL)
IS_MEMBER (Transact-SQL)
SUSER_SID (Transact-SQL)
IS_SRVROLEMEMBER (Transact-SQL)
SUSER_SNAME (Transact-SQL)
ORIGINAL_LOGIN (Transact-SQL)
SYSTEM_USER (Transact-SQL)
PERMISSIONS (Transact-SQL)
SUSER_NAME (Transact-SQL)
PWDCOMPARE (Transact-SQL)
USER_ID (Transact-SQL)
PWDENCRYPT (Transact-SQL)
USER_NAME (Transact-SQL)
