Create A Login And Make It Dbowner Of My Database

Hi All

I have my program create and load (restore) a database, then create a login and make it dbowner by running a script like below via OSQL:

EXEC sp_addlinkedserver 'SETUP1myserver','SQL Server'
EXEC sp_serveroption 'SETUP1myserver','DATA ACCESS', 'TRUE'
GO
DROP DATABASE [mydb]
GO
EXEC sp_droplogin 'mylogin'
GO
CREATE DATABASE [mydb]
ON (NAME = N'mydb_data', FILENAME = N'C:AppfolderSQLmydb.mdf' , SIZE = 100, FILEGROWTH = 10%)
LOG ON (NAME = N'mydb_log', FILENAME = N'C:AppfolderSQLmydb.ldf' , FILEGROWTH = 10%)
COLLATE Latin1_General_CI_AS
GO
RESTORE DATABASE mydb FROM DISK = 'C:AppfolderSetupmydb.bak' WITH REPLACE,
MOVE 'mydb_data' TO 'C:AppfolderSQLmydb.mdf',
MOVE 'mydb_log' TO 'C:AppfolderSQLmydb.ldf'
GO
EXEC sp_addlogin 'mylogin','pass1$'
GO
USE mydb
EXEC sp_changedbowner 'mylogin'
GO


This works fine to a point. The program can then connect to the database and carry out normal processing with the "mylogin" user/password but it cannot do administration activities that a dbowner can do.

How do I create a login that does have true dbowner rights?

TIA

Sed Mayne