I think my question might have been unclear to some of you. So I would again explain my problem(& solution which I thought of) for the sake of clarity:-
Consider I have 2 rows. 1st row contains 60-70 columns and 2nd row contains like in hundreds of thousands columns. Both the columns sets are all valueless. I need to just findout the **common column names** in the two rows. **These two rows are known to me**. So what I plan to do is, I just pick up all **columns (names)** of 1st row (60 -70 columns) and just ask for them in 2nd row, whatever column names I get back is my result. Would there be any problem with this solution ? This is how I am expecting to get common column names.
