Extract : Can we use same UE in two different Data groups in the Extract

Summary

Extract : Can we use same UE in two different Data groups in the Extract

Content

Hi,

I need to fetch two sets of data from same UE and i cannot achieve the same with the single filter criteria.
So can i use two different Data groups with the same UI and use same Attributes in two data groups?

If we build the extract that way, how does the xml write data for the same attributes in different data groups?

In a simpleway i need to fetch data using Union in a SQL.

Thanks
Vijay