RUNQRY allows some override, providing you remember to run that. However
1 - You have to remember to provide that. Who always does? And, that
would be in your program library, not your data library. So, unless you
do like Infor and retrieve your data library from some data area and use
that variable on your runqry all bets are off.
2 - If you have more than one library you're using (PRODa, PRODb ) and
want to go to (TESTa, TESTb) can you do that?