Re: how to show all data if printed is null?

I'm new to crystal report now if i need to.

({WORK_ORDER.PRINTED_DATE} = CurrentDate OR {WORK_ORDER.PRINTED_DATE} = cdate(0,0,0))and

(if Maximum({WORK_ORDER.PRINTED_DATE})= today then  {CUSTOMER_ORDER.ID}) and

{CUSTOMER_ORDER.STATUS} = "H" and

there some customer order that all work order has not been printed at all.