Question

I looked around here and i can’t find an answer to this. It might be that I don’t know the right term to look for.

I have about 15 tables, all with the same columns and similar data. The only differences between them is date created.

I want to search some of them like this:

SELECT * 
FROM table_2010, table_2011 
WHERE date_created BETWEEN '2010-04-01' AND '2011-04-01'
ORDER BY date_created

But i don’t believe that will work because it will treat all my data as 2 tables, and create ambiguous fields 😛

Any suggestions? Is this a union job or something?!

Answer 1

select * 
from (SELECT * FROM table_2010
      WHERE date_created BETWEEN '2010-04-01' AND '2011-04-01'
      union
      SELECT * FROM table_2011
      WHERE date_created BETWEEN '2010-04-01' AND '2011-04-01'
) as t
ORDER BY date_created