sp_helpdbfixedrole (Transact-SQL MetaData) Definition

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The meta data is from an SQL 2012 Server.

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Definition:

sys.sp_helpdbfixedrole(nvarchar @rolename)

MetaData:

 create procedure sys.sp_helpdbfixedrole  
    @rolename        sysname = NULL  
AS  
    if @rolename is not null  
    begin  
        --  VALIDATE GIVEN NAME  
        if not exists (select * from sys.database_principals where name = @rolename  
                        and principal_id >= 16384 and principal_id <= 16393)  
        begin  
            raiserror(15412, -1, -1, @rolename)  
            return (1)  
        end  
  
        --  RESULT SET FOR SINGLE FIXED-ROLE  
        select 'DbFixedRole' = u.name, 'Description' = p.name collate catalog_default  
            from sys.database_principals u, sys.role_permissions p  
            where u.name = @rolename and  
                  u.principal_id >= 16384 and  
                  u.principal_id <= 16393 and  
                  p.number = u.principal_id and p.type = 'DBR' and p.low = 0  
    end  
    else  
    begin  
        --  RESULT SET FOR ALL FIXED-ROLES  
        select 'DbFixedRole' = u.name, 'Description' = p.name collate catalog_default  
            from sys.database_principals u, sys.role_permissions p  
            where u.principal_id >= 16384 and  
                  u.principal_id <= 16393 and  
                  p.number = u.principal_id and p.type = 'DBR' and p.low = 0  
    end  
  
    return (0) --  sp_helpdbfixedrole