su - oracle
	  lsnrctl start
	  sqlplus / as sysdba
	  startup
	詳細步驟如下:
	  進入到sqlplus啟動實例
	  [oracle@redhat ——]$ su - oracle                                 --“切換到oracle用戶”
	  Password:
	  [oracle@redhat ——]$ lsnrctl start                               --“打開監聽”
	  LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 14-OCT-2009 19:06:40
	  Copyright (c) 1991, 2005, Oracle.  All rights reserved.
	  Starting /home/oracle/product/10g/bin/tnslsnr: please wait...
	  TNSLSNR for Linux: Version 10.2.0.1.0 - Production
	  System parameter file is /home/oracle/product/10g/network/admin/listener.ora
	  Log messages written to /home/oracle/product/10g/network/log/listener.log
	  Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC2)))
	  Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=redhat)(PORT=1522)))
	  Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC2)))
	  STATUS of the LISTENER
	  ------------------------
	  Alias                     LISTENER
	  Version                   TNSLSNR for Linux: Version 10.2.0.1.0 - Production
	  Start Date                14-OCT-2009 19:06:40
	  Uptime                    0 days 0 hr. 0 min. 0 sec
	  Trace Level               off
	  Security                  ON: Local OS Authentication
	  SNMP                      OFF
	  Listener Parameter File   /home/oracle/product/10g/network/admin/listener.ora
	  Listener Log File         /home/oracle/product/10g/network/log/listener.log
	  Listening Endpoints Summary...
	  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC2)))
	  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=redhat)(PORT=1522)))
	  Services Summary...
	  Service "PLSExtProc" has 1 instance(s).
	  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
	  The command completed successfully
	  [oracle@redhat ——]$ sqlplus /nolog                                --“進入到sqlplus”
	  SQL*Plus: Release 10.2.0.1.0 - Production on Wed Oct 14 19:06:45 2009
	  Copyright (c) 1982, 2005, Oracle.  All rights reserved.
	  SQL> conn /as sysdba                                              --“連接到sysdba”
	  Connected to an idle instance.
	  SQL> startup                                                     --“啟動數據庫實例”
	  ORACLE instance started.
	  Total System Global Area  285212672 bytes
	  Fixed Size      1218968 bytes
	  Variable Size     88082024 bytes
	  Database Buffers   188743680 bytes
	  Redo Buffers      7168000 bytes
	  Database mounted.
	  Database opened.
	  SQL> shutdown immediate                                          --“關閉數據庫實例”
	  Database closed.
	  Database dismounted.
	  ORACLE instance shut down.
	  SQL> exit
	  Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
	  With the Partitioning, OLAP and Data Mining options
	  [oracle@redhat ——]$ lsnrctl stop                                 --“關閉監聽”
	  LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 14-OCT-2009 19:08:06
	  Copyright (c) 1991, 2005, Oracle.  All rights reserved.
	  Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC2)))
	  The command completed successfully