title: PL/SQL Query with Variables
body: <p>I have a fairly complex query that will be referencing a single date as a start or stop date multiple times throughout. I'm going to have to run this query for 3 different fiscal years, and don't want to have to hunt down the date 17 times in order to change it throughout my query.</p>
  
  <p>Is there a way to set a variable at the beginning of my query and reference it throughout? I'm not looking to write a whole function, just reference a variable throughout my query.</p>