-79798 A numeric year expansion is required after 'Y' character in DBDATE string

Explanation
This error occurs because the DBDATE format
string has a year designation (specified by the character Y),
but there is no character following the year designation to denote
the numeric year expansion (2 or 4). 

User response
To fix the problem, modify the DBDATE format
string to include the numeric year expansion value after the Y character.