1.登录服务器，切换到oracle用户，或者以oracle用户登录

[admin@dataserver ~]$su- oracle（一定要带-）

密码：

[oracle@dataserver ~]$

2.打开监听服务

[oracle@localhost ~]$ lsnrctl start

可以通过lsnrctl status命令查看Oracle监听器运行状况

[oracle@localhost ~]$ lsnrctl status

3.以SYS用户身份登录Oracle

[oracle@localhost ~]$ sqlplus /nolog

SQL*Plus: Release11.2.0.1.0Production on Fri Dec123:29:192017Copyright (c) 1982,2009, Oracle.  All rights reserved.

SQL> conn /as sysdba

Connected to an idle instance.

切换用户：

CONN 用户名/密码 [AS SYSDBA]，如果是sys用户一定要写上AS　SYSDBA

4.通过startup命令启动实例

SQL>startupORACLE instance started.Total System

... ...

Database mounted.

Database opened.

SQL>

二、Linux下关闭Oracle

1.关闭数据库实例

SQL>shutdownDatabase closed.Database dismounted.ORACLE instance shut down.

SQL> quit

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.关闭监听器

[oracle@localhost ~]$ lsnrctl stop

原链接：https://www.cnblogs.com/muhehe/p/7944887.html