>I am not saying that you are a genius :-)
>However the times that I have needed an advice and/or help, your has given me the correct answer. Without giving you many turns to the subject.
>Well, I´m looking for SQL with VFP.

No - there's some great material in Effective Techniques for Application Development with Visual FoxPro 6.0 by Jim Booth and Steve Sawyer, including the complete, detailed source for replacement referential integrity stuff that demonstrates exactly what goes on in stored procedures, triggers and the like, as well as good coverage on using SQL in the application environment - www.amazon.com carries it, as does the publisher, Hentzenwerke, a UT Partner.