Question

I have like 10 different tables all with different names, but they all contain an email_address column. I want to do a DISTINCT on all of the rows.

Pretty much my end goal is to get a number of distinct email addresses in a bunch of lists.

How could I do this?

Answer 1

I think you want something like this:

SELECT email_address FROM table1
  UNION
SELECT email_address FROM table2
  UNION 
-- And so on...