MySQL query to select results with auto increment as a new column added in the result

Question

I have a student\'s table with the following fields:

student(student_id, student_name, student_avg)

I need to write a query in MySQL which

Answer 1

Try this on

SELECT  @s:=@s+1 serial_number,student_id,student_name,student_avg
FROM    students,
        (SELECT @s:= 0) AS s
WHERE
student_avg > 4;

https://stackoverflow.com/a/11096550/1423506