Convert Credit Card Exp date to YYYY-MM-DD

Had a recent requirement to convert a credit card expiration date from MMYY to YYYY-MM-DD so that it could be sorted upon in Salesforce.  Fortunately, I only had to modify the view in Oracle to the following:

select
    DECODE(
      NVL(myColumn,'N/A'),
      'N/A',
      'N/A',
      to_char(last_day(to_date(myColumn,'MMYY')),'YYYY-MM-DD')
    )
  from myTable