Question

I have two tables test1 { id, name } and test2 { id, name, family } and I write this query:

SELECT dbo.test1.*, dbo.test2.*
FROM dbo.test1
CROSS JOIN dbo.test2

but in datagridview1, I want to show the fields (on header) like this:

test1.id test1.name test2.id test2.name test2.family,

but instead they are displayed like this

id name id name family

which changes are needed for my query.

Answer 1

You’ll need to select the columns individually, and use the as keyword:

SELECT dbo.test1.id as test1id, dbo.test2.id as test2id ...
FROM dbo.test1
CROSS JOIN dbo.test2