1 sqlplus / as sysdba 2 3 alter user 账号名 account unlock; 4 5 exit 6 7 ----------------------------------------- 8 9 sqlplus10 11 输入用户名 密码 后12 13 新密码14 15 ---------------------------------------------------------------------16 17 sqlplus / as sysdba18 19 ALTER PROFILE DEFAULT LIMIT PASSWORD_LIFE_TIME UNLIMITED;20 21 exit