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Old December 16th, 2003, 07:31 PM
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Default Two selects in one procedure

Hi,

Basically I have a stored procedure that inserts values into a temp table, what I want to do is add a second select to the procedure that takes one of the returned values so I can query another table.

How can I take a returned value then add it to a variable so that I can run the second query.

Thanks in advance for any help
 
Old December 17th, 2003, 12:03 AM
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Default

you can try creating a view
CREATE VIEW myview
AS
SELECT col1,col2, col3
FROM yourtable
WHERE col1 = 'value'

Then query the results of the view


Subquery: Simple Example

Let's say we need to provide a list of all of our customers that have placed orders for more than $1000. We don't need the order information, just the customer information. We could accomplish this with a subquery as follows:
SELECT *
  FROM customer
 WHERE CustNo IN (SELECT CustNo
                    FROM orders
                   WHERE ItemsTotal > 1000)
The subquery is the portion enclosed in parentheses. The above expression tells Local SQL to execute the subquery first, which forms a list of customer numbers for all orders greater than $1000. The other query uses this result as the criteria list for the IN function. In this case, the same result could've been accomplished with an INNER JOIN and a SELECT DISTINCT. We were illustrating a simple example - not all subqueries are so trivial.
 
Old December 17th, 2003, 05:28 AM
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Default

Hope this helps

DECLARE @var varchar(20)

SELECT @var = column
FROM yourtemptable
WHERE whatever = whatever

SELECT *
FROM secondtable
WHERE whatever = @var





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