You can attach both databases to the same server (with different names) and then query against both databases using the 3-part naming convention. For example, you would write queries such as:SELECT
customerid,
lastname
FROM
dec_database_bkp.dbo.Customers
UNION
SELECT
customerid,
lastname
FROM
jan_database_bkp.dbo.Customers
You can do similar things for joining tables, views etc. as well.