sorry for opening this thread again...
CASE(
sum( if( compute_6 = 'Fail', 1, 0) for group 1)
when 0 then 'Well Done Keep it up'
when 1,2 then 'Ask your ward to concentrate more on the failed subjects'
when is >= 3 then 'Ask your ward to see the class teacher'
)
now the situation is compute_6 is null but the code is executing the first condition that is...
when 0 then 'Well Done Keep it up'
if compute_6 is null i dont want to show anything..just a null space ...
where i have to make a change for getting a null value?
thanks