Hi Abhilash,
Yes, you have interpreted rightly. I had already tried this thing. but its not working. I have itemcodes in all tables for e.g.
Select distinct T1.ItemCode as Item_Prompt FROM INV1 T1
Select distinct T1.ItemCode as Item_Prompt FROM IGN1 T1
Select distinct T1.ItemCode as Item_Prompt FROM IGE1 T1
now which should i choose. I need common ItemCode as date. Date field is common for all tables. but for date we are not getting any problem because they command parameter has value type Date. This ItemCode, I can not put as date field if i put then it comes without selection. If I try your method then how can i define all table.