DataSet Question

[Frank Oquendo]

Let's say I have a query that looks like this:

SELECT Orders.*, Status.NAME
FROM Orders, Status
WHERE Orders.UserId = @UserID
AND Orders.StatusId = Status.StatusId

When I use that populate a DataSet via a DataAdapter, do I get two new
tables or one? What I want is a single table that is the amalgam of
both. Is this possible?

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[Dan Brussee]

I suggest listing all fields you want instead of the asterisk
notation. Helps to figure out what is going on later. Also, the use of
@UserID, unless you are looking at writing a stored procedure seems
out of place. I assume you will be passing the ID that want into the
SQL text somehow and this is how you are showing it in the newsgroup.
If so, continue. The code you provide will give you what you want, but
there are other, more succinct ways of writing the statement if you
are using SQL Server / Oracle, etc.

 

[Matt Retzer]

Frank,

You should really re-write the SQL statement as:

SELECT Orders.*, Status.NAME
FROM Orders
INNER JOIN Status ON Orders.StatusId = Status.StatusId
WHERE Orders.UserId = @UserID

This will get you one table - I think the other will get you two - but don't
quote me on it. Also, depending on your database structure you may not want
to use an inner join. This is really mroe of a question for a SQL user
group, not a C# group.

Matt