Find max and second max salary for a employee table MySQL

Question

Suppose that you are given the following simple database table called Employee that has 2 columns named Employee ID and Salary:

  Employee
  Employee ID    S         


        

Answer 1

Select Distinct sal From emp Order By sal Desc Limit 1,1;

It will take all Distinct sal. And Limit 1,1 means: leaves top one record and print 1 record.