Question

First image is my query output. Now I want to group the subject so that it become like the second image. Is it possible? Thanks for the help.

select Subject, Grade,
case when Grade >= 50
Then '1'
else '0'
end as Pass,
case when Grade < 50
Then '1'
else '0'
end as Fail
from Grade_report

OUTPUT:

what I want is:

Answer 1

Your specification is not very exact; what number do you expect in the grade on the merged record, and should it just write 1 or 0 or aggregate the sum of the pass and fail columns?

The following will generate your output, it takes the MAX for the grade and SUM for pass/fail information:

WITH GradePassFail AS (
    SELECT 
        Subject, 
        Grade, 
        CASE WHEN Grade >= 50 THEN 1 ELSE 0 END AS Pass, 
        CASE WHEN Grade < 50 THEN 1 ELSE 0 END AS Fail 
    FROM Grade_report
)
SELECT Subject, MAX(Grade) AS Grade, SUM(Pass) AS Pass, SUM(Fail) AS Fail
FROM GradePassFail
GROUP BY Subject