Example SPQ for SigmaPlot 11?

I am using SigmaPlot 11 to graph data from several ODBC-compliant databases. I'd like to create SELECT queries in SigmaPlot instead of having to create them in the databases themselves, but I can't get any SPQ (SigmaPlot SQL) queries to work.

The makers of SigmaPlot boast about its SQL capabilities, but the user's manual and the maker's website give hardly any information about how to use that feature. I have more than twenty years of experience with using SQL for various database systems, but I haven't discovered any syntax variation that is successful with SigmaPlot 11.

Can anyone here who has been successful with this problem please give a few examples of SQL SELECT statements for SigmaPlot? Thank you.