AIX下自动启动/停止Oracle数据库

1：修改/etc/oratab，将“N”改为“Y”，使之支持开机启动。

$ vi /etc/oratab
#

# This file is used by ORACLE utilities.  It is created by root.sh
# and updated by the Database Configuration Assistant when creating
# a database.

# A colon, ':', is used as the field terminator.  A new line terminates
# the entry.  Lines beginning with a pound sign, '#', are comments.
#
# Entries are of the form:
#   $ORACLE_SID:$ORACLE_HOME::
#
# The first and second fields are the system identifier and home
# directory of the database respectively.  The third filed indicates
# to the dbstart utility that the database should , "Y", or should not,
# "N", be brought up at system boot time.
#
# Multiple entries with the same $ORACLE_SID are not allowed.
#
#
orcl:/home/oracle/product/10.2.0:Y

2.创建脚本并赋予相关权限

 2.1创建启动脚本

1）、在/home/oracle目录下，创建start_db.sh  //此路径非特定
$ su - oracle
$ vi start_db.sh

#!/bin/sh
ORACLE_HOME=/home/oracle/product/10.2.0
ORACLE_BASE=/home/oracle
ORACLE_SID=orcl
PATH=/usr/bin:/etc:/usr/sbin:/usr/ucb:/home/oracle/bin:/usr/bin/X11:/sbin:/home/oracle/product/10.2.0/bin:.
export ORACLE_HOME ;
export ORACLE_BASE ;
export ORACLE_SID ;
export PATH ;
echo "######################################################"
echo "# Starting the Listener #"
echo "######################################################"
lsnrctl start
echo ""
echo ""
echo ""
echo "#####################################################"
echo "# Starting the instance :$ORACLE_SID #"
echo "#####################################################"
sqlplus /nolog /home/oracle/oracle.log 2>&1

注：也可以用命令 mkitab 添加

   关于inittab文件相见我博客内的介绍

2.2创建关闭脚本

# vi /etc/rc.shutdown
echo "Stop Oracle instance: orcl"
su - oracle -c dbshut

注：以上两个脚本均经过实际操作！
关于为什么脚本叫/etc/rc.shutdown，以及怎么工作.如下注解