一、启动监听与数据库
1、启动监听：
[root@JTWF oracle]# su oracle bash-4.1$ lsnrctl start
结果如下，则启动成功：
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 04-APR-2014 16:15:25 Copyright (c) 1991, 2009, Oracle. All rights reserved. Starting /home/oracle/product/11.2/db_1/bin/tnslsnr: please wait... TNSLSNR for Linux: Version 11.2.0.1.0 - Production System parameter file is /home/oracle/product/11.2/db_1/network/admin/listener.ora Log messages written to /home/oracle/diag/tnslsnr/JTWF/listener/alert/log.xml Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=JTWF)(PORT=1521))) Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=JTWF)(PORT=1521))) STATUS of the LISTENER ------------------------ Alias LISTENER Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production Start Date 04-APR-2014 16:15:25 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/11.2/db_1/network/admin/listener.ora Listener Log File /home/oracle/diag/tnslsnr/JTWF/listener/alert/log.xml Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=JTWF)(PORT=1521))) The listener supports no services The command completed successfully
2、启动数据库：
连接到sqlplus
su oracle bash-4.1$ sqlplus /nolog
结果如下：
SQL*Plus: Release 11.2.0.1.0 Production on Fri Apr 4 16:15:52 2014 Copyright (c) 1982, 2009, Oracle. All rights reserved. SQL>
以sysdba登陆，并执行命令startup
SQL> conn /as sysdba Connected to an idle instance. SQL> startup
结果如下：
ORACLE instance started. Total System Global Area 839282688 bytes Fixed Size 2217992 bytes Variable Size 578815992 bytes Database Buffers 251658240 bytes Redo Buffers 6590464 bytes Database mounted. Database opened. SQL>
二、关闭数据库、监听
su oracle [root@JTWF oracle]# su oracle bash-4.1$ sqlplus /nolog登陆sqlplus，结果如下：
SQL*Plus: Release 11.2.0.1.0 Production on Fri Apr 4 15:10:59 2014 Copyright (c) 1982, 2009, Oracle. All rights reserved. SQL>
sysdba登陆：
SQL>conn /as sysdba Connected.
关闭数据库：
SQL> shutdown immediate Database closed. Database dismounted. ORACLE instance shut down.
关闭数据库后，若执行查询命令， 则会报如下错误：
SQL> select * from vio_business_request; select * from vio_business_request * ERROR at line 1: ORA-01034: ORACLE not available Process ID: 14138 Session ID: 75 Serial number: 503 SQL>
退出sqlplus：
SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options
2、关闭监听：
bash-4.1$ lsnrctl stop // oracle用户下执行 LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 04-APR-2014 15:17:00 Copyright (c) 1991, 2009, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=JTWF)(PORT=1521))) The command completed successfullybash-4.1$ lsnrctl stop LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 04-APR-2014 15:17:00 Copyright (c) 1991, 2009, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=JTWF)(PORT=1521))) The command completed successfully