interval leading field precision must be zero for this sub-type

  Explanation:  The date/time data type supplied a sub-type  which
  does  not  allow  a  leading  interval  field  precision  to  be
  supplied.

  User Action:  This appears to be an error in the code  generated
  by   SQL.    Contact  your  Oracle  support  representative  for
  assistance.   You  will  need  to  provide  the  statement  that
  produced this error.