步骤:

1:查看ORACLE_HOME是否设置

$ echo $ORACLE_HOME/u01/app/oracle/product/11.2.0/dbhome_1

 

2:执行dbstart 数据库自带启动脚本

[oracle@njdzjkdb ~]$ cd $ORACLE_HOME[oracle@njdzjkdb dbhome_1]$ cd bin/[oracle@njdzjkdb bin]$ dbstartORACLE_HOME_LISTNER is not SET, unable to auto-start Oracle Net Listener Usage: /u01/app/oracle/product/11.2.0/db_1/bin/dbstart ORACLE_HOME错误提示:ORACLE_HOME_LISTNER 没有设置[oracle@njdzjkdb bin]$ ll | grep dbs-rwxr-x---. 1 oracle oinstall 6088 1月 1 2000 dbshut-rwxr-x---. 1 oracle oinstall 13892 12月 11 16:01 dbstart编辑 dbstart,将ORACLE_HOME_LISTNER=$1修改成 ORACLE_HOME_LISTNER=$ORACLE_HOME 前提是$ORACLE_HOME环境设置正确[oracle@njdzjkdb bin]$ vi dbstart ORACLE_HOME_LISTNER=/u01/app/oracle/product/11.2.0/dbhome_1

 

3:编辑/etc/oratab文件

dbca建库时都会自动创建/etc/oratab文件将orcl:/u01/app/oracle/product/11.2.0/dbhome_1:N修改成 orcl:/u01/app/oracle/product/11.2.0/dbhome_1:Y

 

4:编辑/etc/rc.d/rc.local启动文件,添加数据库启动脚本dbstart(注意这里需要切换到root用户,不然没有权限保存

[root@njdzjkdb ~]# vi /etc/rc.d/rc.local#!/bin/bash# THIS FILE IS ADDED FOR COMPATIBILITY PURPOSES## It is highly advisable to create own systemd services or udev rules# to run scripts during boot instead of using this file.## In contrast to previous versions due to parallel execution during boot# this script will NOT be run after all other services.## Please note that you must run 'chmod +x /etc/rc.d/rc.local' to ensureinux# that this script will be executed during boot.touch /var/lock/subsys/localsu oracle -lc "/u01/app/oracle/product/11.2.0/dbhome_1/bin/lsnrctl start"su oracle -lc /u01/app/oracle/product/11.2.0/dbhome_1/bin/dbstart

 

5:重启主机,查看数据库和监听是自启动

 

6:查看数据库是否处于open状态

select status from v$instance