Find Requests for Relational tables
I'm trying to set a find request that differentiates from my clients that purchased and ones that have just register.
What kind of find can I make
Registration:Consultant=="DEBORAH" and IsEmpty(Invoice:Invoice_ID) or isEmpty(Customer:Cust_ID)
I know I can make a field That has the value "purchased" or "not purchase" but would like to stay away from that, for other certain reasons but will if there no other solutions.
Any help would be great thanks