I need to calculate the overall GPA for a student in a particular class.
YEAR SCHOOL STUDENT IDENT GRADE TEACHER CLASS GPA
2007 Snow Canyon High Student1 321649 10 Teacher1 Earth Systems 0.0000
2007 Snow Canyon High Student1 321649 10 Teacher1 Earth Systems 1.6700
2007 Snow Canyon High Student1 321649 10 Teacher1 Earth Systems 3.3300
2007 Snow Canyon High Student1 321649 10 Teacher1 Earth Systems 3.6700
2007 Snow Canyon High Student1 321649 10 Teacher2 Elementary Algebra 0.0000
2007 Snow Canyon High Student1 321649 10 Teacher2 Elementary Algebra 0.6700
2007 Snow Canyon High Student1 321649 10 Teacher2 Elementary Algebra 1.0000
The problem I'm having is that a student may not taken the class for four terms (as in the Elementary Algebra example above). So I can't hard code it to sum the gpa and divide by 4; it needs to be the number of terms the student took the class.
Here's my sql:
select
trnscrpt.schyear as [Year],
school.schname as School,
rtrim(stugrp_active.lastname) + ', ' + rtrim(stugrp_active.firstname) as Student,
trnscrpt.suniq as suniq,
stugrp_active.graden as Grade,
trnscrpt.teachname as Teacher,
trnscrpt.descript as Class,
gpamarks.gpavallvl0 AS GPA
from
dbo.trnscrpt
inner join dbo.stugrp_active on trnscrpt.suniq = stugrp_active.suniq INNER JOIN
school ON stugrp_active.schoolc = school.schoolc INNER JOIN
gpamarks ON trnscrpt.marksetc1 = gpamarks.marksetc AND trnscrpt.markawd1 = gpamarks.mark
where
trnscrpt.graden >= 6 and
trnscrpt.markawd1 not in ('NC','NG','P','W','WA','WF','WI','WP') and
trnscrpt.subjectc in ('LA', 'MA', 'CP', 'CB') and
trnscrpt.schyear = 2007 and
stugrp_active.schoolc = 725
order by
school.schname,
student,
grade,
class
Have you considered a AVG() and a GROUP BY?
|||That worked. In the beginning the averages weren't what I expected but it was mistake on my part. Thanks and I like your signature. So true.
