indicator parameters are not supported for declared variables

  Explanation:  An attempt was made to use a variable with an
  INDICATOR.  This is not supported.  Variables declared within a
  compound statement or in a module automatically support the NULL
  attribute and therefore do not require a separate NULL indicator
  variable.

  User Action:  Remove the INDICATOR variable and simply use the
  declared variable.  Use the IS NULL operator to test the
  variable for null or non null values.