SQL> conn / as sysdba
已连接到空闲例程。
SQL> startup nomount
ORACLE 例程已经启动。
Total System Global Area 534462464 bytes
Fixed Size 2177456 bytes
Variable Size 394266192 bytes
Database Buffers 130023424 bytes
Redo Buffers 7995392 bytes
SQL> select status from v$instance;
STATUS
------------------------
STARTED
SQL> alter database mount;
数据库已更改。
SQL> select status from v$instance;
STATUS
------------
MOUNTED
SQL> alter database open;
数据库已更改。
SQL> select status from v$instance;
STATUS
------------
OPEN
SQL>