title: remove the gap between columns of result in oracle
body: <p>i have a query which gives me exact result.
  but my issue is in result it gives me lot of gap between two columns like</p>
  
  <pre><code>col1                                                                     col2                                              col3
  ----                                                                     ----                                              ----
  </code></pre>
  
  <p>when i have checked the length of individual columns with <code>length</code> function they are showing just 4 or 5 is the length .</p>
  
  <p>i have used some windowing functions to calculate those columns and aliased them.</p>
  
  <p>My question is why it is showing the result as such and how to eliminate the gap b/w the columns in the result?</p>
  
  <p>I am using <code>ORACLE10G</code></p>