Hi Hilmar,

Thank you for the explaination about "PK". Now I know that it stands for "Primary Key", thanks to you my friend. I didnt knew then that "PK" is a short term for "Primary Key".

But I didn't say though that PK is new with VFP9. What I said/meant was, i'm a new user of VFP9 and just starting to learn about it and I'm asking what does "PK" means.

Sonny