Ranking - SQL Server Forums

Please start any new threads on our new site at https://forums.sqlteam.com. We've got lots of great SQL Server experts to answer whatever question you can come up with.

All Forums

General SQL Server Forums

New to SQL Server Programming

Ranking

Author

Topic

Adura19
Starting Member

5 Posts

Posted - 2013-01-05 : 14:15:03

I have 3 tables; student,subject & score.
I want to do the position of each student base on each subject, e.g student with 1st position in Eng, Math etc
kindly help.
Thanks

shenulal
Starting Member

11 Posts

Posted - 2013-01-06 : 03:13:56

Create table #student(ID int identity(1,1), StudentName varchar(50))
Create table #subject (ID int identity(1,1), Subject varchar(50))
Create table #score(ID int identity(1,1), SubjectID int, StudentID int, Score decimal(18,2))

Insert into #student(StudentName)
Select 'Shenu' Union
Select 'Prasad' Union
Select 'Shihab' Union
Select 'KP' union
Select 'Biju' Union
Select 'Shihab' Union
Select 'Shanweel' Union
Select 'Sufana' Union
Select 'Niya' union
Select 'Raju'

Insert into #subject(Subject)
Select 'English' Union
Select 'Maths' Union
Select 'Physics'

Insert into #score(SubjectID,StudentID,Score)
Select 1,1, 40.5 UNION
Select 2,1, 48 Union
Select 3,1, 44 union

Select 1,2, 38.5 UNION
Select 2,2, 43 Union
Select 3,2, 49 union

Select 1,3, 42.5 UNION
Select 2,3, 45 Union
Select 3,3, 47 union

Select 1,4, 42.25 UNION
Select 2,4, 45.25 Union
Select 3,4, 46 union

Select 1,5, 25 UNION
Select 2,5, 27 Union
Select 3,5, 39 union

Select 1,6, 34 UNION
Select 2,6, 33 Union
Select 3,6, 38 union

Select 1,7, 44 UNION
Select 2,7, 49 Union
Select 3,7, 48.5 union

Select 1,8, 47 UNION
Select 2,8, 45.25 Union
Select 3,8, 49.25 union

Select 1,9, 41.25 UNION
Select 2,9, 47.5 Union
Select 3,9, 49.5

select S.Score,SS.Subject,#student.StudentName
from (
select #subject.ID as SubjectID,#subject.Subject,max(#score.Score) as MaxScore
from #score inner join
#subject on #subject.ID= #score.SubjectID group by #subject.ID,#subject.Subject
) as SS inner join #score as S on SS.SubjectID = S.SubjectID and SS.MaxScore=S.Score
inner join #student on #student.ID=S.StudentID;

Adura19
Starting Member

5 Posts

Posted - 2013-01-06 : 09:51:36

Thanks for ur help.
But d query only generated student with highest score in each subject.
What i want is student with 1st position,2nd position, 3rd position and so on in each subject.
Thanks.

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-01-06 : 10:08:48

[code]
SELECT *,DENSE_RANK() OVER (PARTITION BY subject ORDER BY score DESC) AS SubjectPosition
FROM table
[/code]

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

Adura19
Starting Member

5 Posts

Posted - 2013-01-06 : 16:09:05

Thank you all for contributions.
It works perfectly.

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-01-07 : 10:02:43

welcome

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

Subscribe to SQLTeam.com

SQLTeam.com Articles via RSS

SQLTeam.com Weblog via RSS

- Advertisement -

Resources