oracle sde 用户过期问题解决

C:\Users\lenovo>sqlplus SQL*Plus: Release 11.2.0.1.0 Production on 星期日 7月 8 16:47:52 2012 Copyright (c) 1982, 2010, Oracle. All rights reserved. 请输入用户名: sde/sde ERROR: ORA-28002: the password will expire within 7 days