oral 11g数据库操作


用户sys as sysdba   服务多的话还可以更改为sys@orcl as sysdba 链接

解锁用户ALTER USER scott ACCOUNT UNLOCK;

登录scott用户 口令为tiger

检查 show user

SELECT * FROM DEPT;

修改'New York'->'QCS'

UPDATE DEPE

SET LOC='QCS'

WHERE DEPTNO=10;

在sql中你需要换用户 就用conn +[ ]

链接型用户  conn sys as sysdba 

查日志文件

select group#，first_change#,next_change#,status

from v$log;

切换日志文件

alter system switch logfile;