Question

I have a database with two tables (Table1 and Table2). They both have a common column [ColumnA] which is an nvarchar.

How can I select this column from both tables and return it as a single column in my result set?

So I’m looking for something like:

ColumnA in Table1: a b c  ColumnA in Table2: d e f  Result set should be: a b c d e f 

Answer 1

SELECT ColumnA FROM Table1 UNION Select ColumnB FROM Table2 ORDER BY 1 

Also, if you know the contents of Table1 and Table2 will NEVER overlap, you can use UNION ALL in place of UNION instead. Saves a little bit of resources that way.

— Kevin Fairchild