title: Incrementing one day to date in SQL Developer
body: <pre><code>data_var := dateadd(day,1,data_var);
  </code></pre>
  
  <p>I'm trying this to increment one day to data_var but I keep getting this error 'identifier 'dateadd' must be declared'. I searched all around and found nothing to help me deal with this issue. Help?</p>