How do I do multiple CASE WHEN conditions using SQL Server 2008

0 votes

For the same column, I'm attempting to use multiple CASE WHEN conditions.

Here is my code for the query:

   SELECT   Url='',
            p.ArtNo,
            p.[Description],
            p.Specification,
            CASE 
            WHEN 1 = 1 or 1 = 1 
               THEN 1 
               ELSE 0 
            END as Qty,
            p.NetPrice,
            [Status] = 0
      FROM  Product p (NOLOCK)

What I want to do is use more than one WHEN for the same column "qty".

As in the following code:

IF
// CODE
ELSE IF
// CODE
ELSE IF
// CODE
ELSE
// CODE

Can someone please help me with this?

Sep 19, 2022 in Database by Kithuzzz
• 38,010 points
1,674 views

1 answer to this question.

0 votes

There are three formats of the case expression. You can do CASE with many WHEN as;

CASE  WHEN Col1 = 1 OR Col3 = 1  THEN 1 
      WHEN Col1 = 2 THEN 2
      ...
      ELSE 0 END as Qty

Or a Simple CASE expression

CASE Col1 WHEN 1 THEN 11 WHEN 2 THEN 21 ELSE 13 END

Or CASE within CASE as;

CASE  WHEN Col1 < 2 THEN  
                    CASE Col2 WHEN 'X' THEN 10 ELSE 11 END
      WHEN Col1 = 2 THEN 2
      ...
      ELSE 0 END as Qty
answered Sep 20, 2022 by narikkadan
• 63,420 points

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