Sure it is possible to use results from several SQL sources / scripts. Is it related data? If so, make sure that the relations in Qlikview will become right (check the table viewer > Ctrl + T). If not, avoid those relations. In that case I think you'd be better of with 2 separate .qvw's
Could you elaborate a bit more on where your problem is? Did you try to build it in Qlikview already?
In your loadscript you can make a connection to SQL datasource one... load some scripts for them...
And when you load things frrom a second SQL source, just make sure that you make a new connect-string.
As many datasources as desired can be combined in Qlikview
