title: How do you convert SYS_GUID() to varchar?
body: <p>In oracle 10g, how do you convert SYS_GUID() to varchar?  I am trying something like:</p>
  
  <pre><code>select USER_GUID from user where email = 'user@example.com'
  </code></pre>
  
  <p>Which returns the RAW byte[].  Is it possible to use a function to convert the RAW to VARCHAR2 in the SQL statement?</p>