title: How to change only the year of a date datatype
body: <p>I have a list of birthdays and the year is the only part that is incorrect.  I have a list of ID #s for these individuals.  Is there a way to change only the year for all of these people?  I was thinking something like making a table of the query results and then using an <code>UPDATE</code> <code>SET</code> query, but I don't know how to only change the year.</p>
  
  <p><img src="https://i.stack.imgur.com/Q0jDP.jpg" alt="enter image description here"></p>
  
  <p>Sample included in edit.  Every year needs to be decreased by 2.</p>