Unpivot with column name

Question

I have a table StudentMarks with columns Name, Maths, Science, English. Data is like

Name,  Maths, Science, English  
Tilak, 90         


        

Answer 1

Another way around using cross join would be to specify column names inside cross join

select name, Subject, Marks 
from studentmarks
Cross Join (
values (Maths,'Maths'),(Science,'Science'),(English,'English')
) un(Marks, Subject)
where marks is not null;