RE: Merge two tables into one.

SSC Guru

Points: 186127

February 20, 2014 at 5:49 am

serg-52 (2/20/2014)
Then JOIN them
select x.R1,x.R2,x.R3, y.C1,y.C2,y.C3
from Database.table1 as x
join Database.table2 as y
to get all possible combinations aka cartesian product.
Restrict combinations using WHERE clause
http://technet.microsoft.com/en-us/library/ms191517(v=sql.105).aspx

On its own, join will raise an error.

select x.R1,x.R2,x.R3, y.C1,y.C2,y.C3

from Database.table1 as x

CROSS JOIN Database.table2 as y

^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}

For fast, accurate and documented assistance in answering your questions, please read this article.
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