title: Same seq_name.nextval in one query. ORACLE
body: <p>how can you select the same sequence twice in one query?</p>
  
  <p>I have googled this and just cant get an answer.</p>
  
  <p>Just to be clear, this is what I need, example :  </p>
  
  <p><code>select seq.nextval as v1, seq.nextval as v2 from dual</code> (I know that doesn't work)</p>
  
  <p>I have tried UNION as well, Just cant get my head around it.</p>