I have a query which counts certain fields per a given criteria. When nothing is found, I recieve an empty field, or a Null field. I would like that it returns a zero in this case. I have read many of the threads which exist on this topic and looked up info in handbooks. It seems that this NZ function would work, but I have NO idea where do I write these expressions and how do I write these expressions? I am not a programmer. Thank you for yor help.