Question

I have a table in which there are some columns say (a,b,c,d,e) . Based on the user input i want to select the value from particular column . For eg if user gives a then i want select a from table , similarly if user chooses then i want select b from table

Answer 1

select case @InputValue
        when 'A' then ColumnA 
        when 'B' then ColumnB
        else ColumnC
    end
from MyTable