How to start Oracle?

How to start Oracle?

First use the "su oracle" command to switch to the oracle account;

[root@oracle-server ~]# su oracle

Then log in to the "sqlplus" tool;

SQL*Plus: Release 11.2.0.1.0 Production on 星期一 6月 24 11:04:29 2019

Copyright (c) 1982, 2009, Oracle.  All rights reserved.

Then log in to the database;

请输入用户名:  XX
输入口令: 
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Linux-x86_64 Error: 2: No such file or directory
进程 ID: 0
会话 ID: 0 序列号: 0

Then use the command "conn / as sysdba" to connect to sysdba;

SQL> conn / as sysdba
已连接到空闲例程。

Finally, use the "startup" command to start the database.

SQL> shutdown immediate
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Linux-x86_64 Error: 2: No such file or directory
SQL> startup
ORACLE 例程已经启动。

Total System Global Area 1586708480 bytes
Fixed Size		    2213736 bytes
Variable Size		 1107298456 bytes
Database Buffers	  469762048 bytes
Redo Buffers		    7434240 bytes
数据库装载完毕。
数据库已经打开。

Recommended tutorial: "Oracle Tutorial"

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