I am using both SQL Server 2008 and 2008 R2, I have a situation where I need both on the same computer and in same user.
But with the different versions.
I wanted to installed SQL Server 2008 Express and SQL Servre 2008 R2 Standard Edition.
My question is can we do this? if yes then can you please guide me how to install it. Thanks in advanced.
Yes of course you can do this. Also, there's nothing special to "guide you" for installation - just install them.
The only point you need to be aware of: if you have multiple versions of SQL Server installed, they have to have a separate instance name (which you pick at install time).
By default, a "regular" SQL Server installs as a "default instance" without explicit instance name. SQL Server Express by default uses the SQLEXPRESS instance name.
So basically: yes it's totally possible, just pick separate instance names for both installations!
