MySql - Create view to read from Multiple Tables

Question

I have archived some old line items for invoices that are no longer current but still need to reference them. I think I need to create a VIEW but not really understanding it. Ca

Answer 1

You can use UNION :

SELECT a.* FROM a 
  UNION
SELECT b.* FROM b;

You just need to have the same number and type of column in your different queries. As far as I remember, you can add test in sub-queries, but I'm not sure you can order on the global result.

http://dev.mysql.com/doc/refman/4.1/en/union.html