title: Select column_name from cols return nothing although column exists
body: <p>i am trying to execute this statement in Oracle 9i.  However it seems that the result set is empty although J am very sure that there are many columns with the name ID.</p>
  
  <pre><code>select * from cols where column_name like '%ID%';
  </code></pre>
  
  <p>Also, the following statement returns an empty result set.</p>
  
  <pre><code>select * from cols;
  </code></pre>
  
  <p>May I ask if this could be due to user privilege?</p>
  
  <p>Thanks!</p>