title: Get Columns Names of Table
body: <p>How I can Get  for <em>a specific Table</em> its <em>columns Names</em> ? 
  I tried this :</p>
  
  <pre><code>SELECT  column_name
  FROM USER_TAB_COLUMNS
  WHERE table_name = 'x' ;
  </code></pre>
  
  <p>But it <em>doesn't work</em>.</p>