title: Find 2nd max salary using linq
body: <p>I have following sql query for finding 2nd max salary.</p>
  
  <pre>
  
  Select * From Employee E1 Where
      (2) = (Select Count(Distinct(E2.Salary)) From Employee E2 Where
          E2.Salary > E1.Salary)
  </pre>
  
  <p>I want to convert it into Linq statement.</p>