How to protect the sql server 2005 MDF file

Question

How to set the Password for sql server 2005 MDF file.

Becoz i want to give the trail package to the client,package including the MDF.

After installing the pa

Answer 1

If someone is sysadmin of an instance, one will be able to attach the mdf regardless of what you do. If you want to protect data from sysadmin, there are some tricks possible but it is rather hard. If you want to prevent most of the people (with exception of owner of database and sysadmin) from connection to database, implement role based security, where you can define what roles can and cannot do with data in database. You can also look at application roles, they may be useful for you.