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Need help in Query

Author

Topic

geniussandy
Starting Member

1 Post

Posted - 2010-09-01 : 12:10:18

I have 3 tables
login ( student_id,password)
student_academics_info(student_id,CGPA,branch)

where CGPA is Cumulative Grade Point Average at scale of 10

student_personal_info(student_id,sex)

i want to write a query to get average CGPA of males of each branch and average CGPA of females of each branch.

--
Sandeep Agarwal

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2010-09-01 : 12:12:50

whats formula?

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

rohitvishwakarma
Posting Yak Master

232 Posts

Posted - 2010-09-02 : 08:35:54

hi sandeep,

Following is the query:

SELECT A.branch,P.student_sex,SUM(A.CGPA) as TotalCGPA, COUNT(L.student_id) TotalStudents ,SUM(A.CGPA)/COUNT(L.student_id) AS Average
FROM login L
INNER JOIN student_academics_info A
ON L.student_id = A.student_id
INNER JOIN student_personal_info P
ON L.student_id =P.student_id
WHERE branch IN (select distinct branch from student_academics_info )
GROUP BY A.branch,P.student_sex

If there is any issue with the query or you need more details then feel free to revert back

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