Question

I have a query (in sp) which takes long time to Execute :

e.g.

Select name, age ,token1 from Mytable where id=2 //long calc....

//later on the same sp...

select anotherCalc from Table2 where tokenId=token1 // token1 is from the prev query.

How can i pass the value from 1st query to the second ?

Ive tried : 

declare @tmp int

Select name, age ,@tmp=token1 from Mytable where id=2 

but its not working…

Answer 1

You can’t mix a select that assigns to variables with one that returns results. If the first query only returns at most one row you can use

SELECT @name = name,
       @age = age,
       @token1 = token1
FROM   Mytable
WHERE  id = 2

IF(@@ROWCOUNT > 1)
    RAISERROR('Multiple rows returned - Indeterminate result',16,1)

/*Return result to client*/
SELECT @name   AS name,
       @age    AS age,
       @token1 AS token1

SELECT anotherCalc
FROM   Table2
WHERE  tokenId = @token1