variable replacementh path

Hi all,

I have a query1 with IO 0DOC_NUM and query2 with IO 0REFER_DOC.

I need to fill 0REFER_DOC in query2 with 0DOC_NUM from query1.

It's possible?

I tried to fill with replacementh path variable but isn't possible fill one infoobject with another.

Any suggestion please?

Thanks

Gianmarco