SQL Server pivot using case statement

Question

I\'m trying to pivot out some data and I think I need to incorporate a case statement in my pivot code but I\'m not sure how. I have the table below:

ID              


        

Answer 1

You need to use aggregate on top of case statements

SELECT id,
       Max(CASE
             WHEN LEFT(areaID, 1) = 1 THEN 'Yes'
           END) Head,
       Max(CASE
             WHEN LEFT(areaID, 1) = 2 THEN 'Yes'
           END) Face,
       Max(CASE
             WHEN LEFT(areaID, 1) = 3 THEN 'Yes'
           END) Neck,
       Max(CASE
             WHEN LEFT(areaID, 1) = 4 THEN 'Yes'
           END) Abdo
FROM   #testcase
GROUP  BY id