how to display the data provider sql name in webi report

Hi,

i have Webi report have 2 sql's in same universe.For ex: Sales and Purchase. I wanted to display the sql name in the report header.

If i refresh Sales than it should display "Sales" Samething if i refresh Purchase sql than display will "Purchase".

If Refresh All than Empty.

Can someone can help me to achive this.

Thanks in advance.

Thanks & Regards,

Kumar.