Sarma: Assuming you mean you have a single table with StudentName, Exam1, Exam2, etc., then the query would include all those fields and a Calculated field:
TotalExams: Nz([Exam1],0)+Nz([Exam2],0)+Nz([Exam3],0)
keep adding for each field to be included.
Nz(field,0) stands for convert the...