title: Get First Day Of Week From Week Number
body: <p>In Oracle, is there a straightforward way to get the first day of the week given a week number?</p>
  
  <p>For example, today's date is 12/4/2012.  If I run:
  select to_char(sysdate,'WW') from dual;
  It returns 49 for the week number.</p>
  
  <p>What I would like to do is somehow return 12/2/2012 for the first day...given week 49 (assuming Sunday as first day of the week).</p>
  
  <p>Any ideas?  Thanks in advance for any help!</p>