title: Expressing Oracle LISTAGG() functionality in LINQ?
body: <p>Consider the following PL/SQL query:</p>
  
  <pre><code>SELECT department_id, LISTAGG(last_name, '; ')
       WITHIN GROUP (ORDER BY last_name) "Emp_list"
  FROM employees
  GROUP BY department_id;
  </code></pre>
  
  <p>Would would be LINQ equivalent of the above?
  Thank you!</p>