If I upgrade sql server 2005 express to sql server 2008 express, will my user instances in the 2005 database be transfered automaticly?
I am not sure if I catch your meaning.
But if you want to upgrade the SQL Server 2005 Express to SQL Server 2008 Express, you may refer to the following link:
Version and Edition Upgrades
How to: Upgrade to SQL Server 2008 (Setup)
Microsoft Online Community Support
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