> But my problem is that the leader off the production line want to look at > how many hours employee have between > to dates. > If at the same time the leader off the technical staff want to look at the > employee he is responsible for. > 5 sec after lead off prod.line push calc button lead. off tech push calc > button, > the end result will be between the to dates which the last leader > calculated. This sounds like you're writing the results of these calculations back to .DBF files. For ad-hoc queries, this is not recommended, precisely because of the problems that you're having. Check out the TO CURSOR clause of the SELECT command. /Paul