maximum or minimum sequence value has been reached

  Explanation:  The maximum value for an ascending sequence or the
  minimum value for a descending sequence has been reached.  There
  are no more sequence values available.

  User Action:  Alter the sequence to increase the  maximum  value
  for  an  ascending  sequence or decrease the minimum value for a
  descending  sequence.   Alternatively,  alter  the  sequence  to
  enable the CYCLE attribute.