Question

I have 2 views with data and they are related via an ID column.

I need to select from view A some ID’s based on another ID. This will often result in a set of ID’s.

Then I need to use this set of ID’s to select rows from another view.

I could do this with 2 queries, but I’d like to do it in a single query.

How should I do this?

Answer 1

SELECT b.*
    FROM ViewA a
        INNER JOIN ViewB b
            ON a.CommonID = b.CommonID
    WHERE a.OtherID = xxx