title: Query to select: who two employee works for the same company
body: <p>Suppose that we have following tables:</p>
  
  <pre><code>company             company_has_employee        employee
  -------------------------------------------------------------
  id                  company_id                  id  
  companzy_name       employee_id                 emplyee_name
  </code></pre>
  
  <p>How to create SQL Query, which retrieves any two employees, who works for the same company and what is this company?</p>