Average of grouped rows in Sql Server

Question

I have an Sql Server Table.. it\'s something like this:

Id ...... Column1 ...... Column2  
````````````````````````````````  
1 ........ 1 ............. 34  
2 ..         


        

Answer 1

This following Query will help for Calculate the average value of a ROW:

 select Avg(A.Tamil + A.English + A.Maths + A.Science + A.Social_Science)/5 As 
 Average
 from MarkTable A, MarkTable B, MarkTable C
 where A.RollNo='14UCA002'

This might helpful...