anchor.diff:                   | INITRANS inittrans=UNSIGNED_INTEGER
                    )*
                    (STORAGE '('
  -                   (INITIAL initial=size_clause
  -                   | NEXT next=size_clause
  +                   (INITIAL initial_size=size_clause
  +                   | NEXT next_size=size_clause
                      | MINEXTENTS minextents=(UNSIGNED_INTEGER | UNLIMITED)
                      | PCTINCREASE pctincrease=UNSIGNED_INTEGER
                      | FREELISTS freelists=UNSIGNED_INTEGER
  
positive.code:         | INITRANS inittrans=UNSIGNED_INTEGER
          )*
          (STORAGE '('
            (INITIAL initial=size_clause
            | NEXT next=size_clause
            | MINEXTENTS minextents=(UNSIGNED_INTEGER | UNLIMITED)
            | PCTINCREASE pctincrease=UNSIGNED_INTEGER
            | FREELISTS freelists=UNSIGNED_INTEGER
  
negative.code: // Loop Specific Clause
  
  cursor_loop_param
      : index_name IN REVERSE? lower_bound range_sep='..' upper_bound
      | record_name IN (cursor_name ('(' expressions? ')')? | '(' select_statement ')')
      ;
  
  