title: Removing the Character before Dash
body: <p>I am to extract characters from a string before and after the dash (-). So far, I was able to use this code below to return all the numbers before dash:</p>
  
  <pre><code>SELECT 
  INSTR('100-7', '-'),
  SUBSTR('100-7', 1, INSTR('100-7', '-')-1)
  FROM dual;
  </code></pre>
  
  <p>Now I am trying to find a way to return all the characters after dash. So if I have a string:</p>
  
  <pre><code>20-150
  </code></pre>
  
  <p>THe query should only return me 150. Is there anyway I can do this? By the way, I am using Oracle. Thanks guys :)</p>