MySQL Sum() multiple columns

Question

I have a table of student scorecard. here is the table,

subject  | mark1 | mark2 | mark3 |......|markn
stud1    | 99    | 87    | 92    |      | 46
stud2            


        

Answer 1

SELECT student, (SUM(mark1)+SUM(mark2)+SUM(mark3)....+SUM(markn)) AS Total
 FROM your_table
 GROUP BY student