书中的一个错误

CREATE DATABASE mynewdb
USER SYS IDENTIFIED BY pz6r58
USER SYSTEM IDENTIFIED BY y1tz5p
LOGFILE GROUP 1 ('/vobs/oracle/oradata/mynewdb/redo01.log') SIZE 100M,
GROUP 2 ('/vobs/oracle/oradata/mynewdb/redo02.log') SIZE 100M,
GROUP 3 ('/vobs/oracle/oradata/mynewdb/redo03.log') SIZE 100M
MAXLOGFILES 5
MAXLOGMEMBERS 5
MAXLOGHISTORY 1
MAXDATAFILES 100
MAXINSTANCES 1
CHARACTER SET US7ASCII
NATIONAL CHARACTER SET AL16UTF16
DATAFILE '/vobs/oracle/oradata/mynewdb/system01.dbf' SIZE 325M REUSE
EXTENT MANAGEMENT LOCAL
DEFAULT TEMPORARY TABLESPACE tempts1
DATAFILE '/vobs/oracle/oradata/mynewdb/temp01.dbf'
SIZE 20M REUSE
UNDO TABLESPACE undotbs
DATAFILE '/vobs/oracle/oradata/mynewdb/undotbs01.dbf'
SIZE 200M REUSE AUTOEXTEND ON NEXT 5120K MAXSIZE UNLIMITED;