title: linq: order by random
body: <p>How can I change below code, to each time get 50 different random data from database?</p>
  
  <pre><code>return (from examQ in idb.Exam_Question_Int_Tbl
        where examQ.Exam_Tbl_ID==exam_id
        select examQ).OrderBy(x=&gt;x.Exam_Tbl_ID).Take(50);
  </code></pre>