How can I do Inner Join?

[Sara]

Hi, I'm trying to do an inner join (find elements in common between 2 columns).

How can I do that here?

I saw the functions Concatenate and Arrayjoin, but I didn't find anything about Inner join, maybe I'm looking in the wrong place. Is it possible to do it? Thank you😊

[Sara]

It works!! Thank you thank you very much!