Library /sys$common/syshlp/helplib.hlb

  For DELETE_ROWS or FLUSH=ON_COMMIT the COMMIT_EVERY  value  must
  equal  or  be a multiple of the ROW_COUNT value.The COMMIT_EVERY
  value of <num> is not equal to or a multiple  of  the  ROW_COUNT
  value of <num>.

  Explanation:    For   DELETE_ROWS   or    FLUSH=ON_COMMIT    the
  COMMIT_EVERY  value must equal or be a multiple of the ROW_COUNT
  value to prevent possible loss of data  written  to  the  unload
  file  if there is an error.  The COMMIT_EVERY value is not equal
  to or a multiple of the ROW_COUNT value.

  User Action:  Specify a COMMIT_EVERY value that is equal to or a
  multiple of the ROW_COUNT value.