Hi Samuel.

>> I have one more question, In network, which files and when we should use buffer 4 to update. <<

I'm not sure what you are asking here. Personally, IMHO, pessimistic table buffering is a bad idea all the way around. I never use it.

If you can re-phrase your question and provide me with a little more detail, maybe I can try to help you figure something out.

Marcia