下面是操作实例：

　　[oracle@redhatoracle oracle]$ sqlplus /nolog

　　SQL*Plus: Release 9.2.0.4.0 – Production on Fri Dec 15 21:28:43 2006

　　Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.

　　SQL> conn / as sysdba

　　Connected to an idle instance.

　　SQL> startup nomount;

　　ORACLE instance started.

　　Total System Global Area 236000356 bytes

　　Fixed Size 451684 bytes

　　Variable Size 201326592 bytes

　　Database Buffers 33554432 bytes

　　Redo Buffers 667648 bytes

　　SQL> alter database gldb mount;

　　Database altered.

　　SQL> alter database gldb open;

　　Database altered.

　　SQL> shutdown immediate;

　　Database closed.

　　Database dismounted.

　　ORACLE instance shut down.

　　SQL>