dbca不能delete数据库+db开机自启动

一、dbca不能delete数据库

装了实例，但是dbca后不能选中delete a database选项，如下图

 

 

解决方法，在/etc/oratab文件里添加实例的信息：

[root@custest ~]# cat /etc/oratab |grep -v"#"

custest:/u02/oracle/product/10.2.0/db:N

 

格式：

SID:ORACLE_HOME:Y|N

 

做一记录。

 

二、/etc/oratab文件

[root@custest ~]# more /etc/oratab

#

 

 

 

# This file is used by ORACLE utilities.  It is created by root.sh

# and updated by the Database ConfigurationAssistant when creating

# a database.

 

# A colon, ':', is used as the fieldterminator.  A new line terminates

# the entry. Lines beginning with a pound sign, '#', are comments.

#

# Entries are of the form:

#  $ORACLE_SID:$ORACLE_HOME:<N|Y>:

#

# The first and second fields are the systemidentifier 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 arenot allowed.

#

#

custest:/u02/oracle/product/10.2.0/db:N

 

 

/etc/oratab 由root.sh 脚本创建，在用DBCA 创建实例时也会更新这个文件。

 

当$ORACLE_SID:$ORACLE_HOME:<N|Y> 设置为Y时，允许实例自启动，当设置为N时，则不允许自启动。这个文件里的配置仅仅起一个开关的作用，其并不会具体的执行启动和关闭，具体的操作由$ORACLE_HOME/bin/dbstart和dbshut脚本来实现。这2个脚本在执行时会检查/etc/oratab文件里的配置，为Y时才能继续执行。

 

所以配置数据库自启动和关闭的步骤如下：

（1）    配置/etc/oratab

（2）    修改$ORACLE_HOME/bin/dbstart和dbshut，并将其添加到/etc/rc(.local)文件中。

 

这里是使用oracle 自带的dbstart 和dbshut脚本，如果使用自己写的脚本来启动或关闭DB 就不需要关心这个文件的设置了。

 

三、DB 开机自启动示例

1 修改/etc/oratab的值为Y

gg1:/u01/app/oracle/product/11.2.0.3/db_1/bin>ll/etc/oratab

-rw-rw-r-- 1 oracle oinstall 722 Jan 3020:36/etc/oratab

gg1:/u01/app/oracle/product/11.2.0.3/db_1/bin>cat/etc/oratab

#

gg1:/u01/app/oracle/product/11.2.0.3/db_1:Y

 

2 修改dbstart的ORACLE_HOME_LISTNER，使其指向$ORACLE_HOME:

# First argument is used to bring up OracleNetListener

ORACLE_HOME_LISTNER=$ORACLE_HOME

 

3 用root用户在rc.local里添加如下内容：

[root@gg1 ~]# cat /etc/rc.local 

#!/bin/sh

#

# This script will be executed *after* allthe otherinit scripts.

# You can put your own initialization stuffin hereif you don't

# want to do the full Sys V style initstuff.

 

touch /var/lock/subsys/local

su - oracle-c"/u01/app/oracle/product/11.2.0.3/db_1/bin/dbstart"

su - oracle-c"/u01/app/oracle/product/11.2.0.3/db_1/bin/emctl start dbconsole"

 

这里注意必须用oracle 用户来启动脚本。

 

4 reboot 系统，Oracle就自动启动了。

 

在我们的配置中，启动的包括监听，实例和OEM。

 

启动日志如下：

gg1:/u01/app/oracle/product/11.2.0.3/db_1>catstartup.log

 

/u01/app/oracle/product/11.2.0.3/db_1/bin/dbstart:Startingup database "gg1"

Mon Jan 30 20:48:26 CST 2012

 

 

SQL*Plus: Release 11.2.0.3.0 Production onMon Jan30 20:48:31 2012

 

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

 

SQL> Connected to an idle instance.

SQL> ORACLE instance started.

 

Total System Global Area  939495424 bytes

Fixed Size                  2233960 bytes

Variable Size             675285400 bytes

Database Buffers          255852544 bytes

Redo Buffers                6123520 bytes

Database mounted.

Database opened.

SQL> Disconnected from Oracle Database11gEnterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, OLAP, Data Mining andRealApplication Testing options

 

/u01/app/oracle/product/11.2.0.3/db_1/bin/dbstart:Databaseinstance "gg1" warm started.

 

 

gg1:/u01/app/oracle/product/11.2.0.3/db_1>catlistener.log

/u01/app/oracle/product/11.2.0.3/db_1/bin/dbstart:StartingOracle Net Listener

 

LSNRCTL for Linux: Version 11.2.0.3.0 -Productionon 30-JAN-2012 21:24:37

 

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

 

Starting/u01/app/oracle/product/11.2.0.3/db_1/bin/tnslsnr:please wait...

 

TNSLSNR for Linux: Version 11.2.0.3.0 -Production

System parameter fileis/u01/app/oracle/product/11.2.0.3/db_1/network/admin/listener.ora

Log messages writtento/u01/app/oracle/diag/tnslsnr/gg1/listener/alert/log.xml

Listeningon:(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=gg1)(PORT=1521)))

Listeningon:(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))

 

Connecting to(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=gg1)(PORT=1521)))

STATUS of the LISTENER

------------------------

Alias                     LISTENER

Version                   TNSLSNR for Linux:Version11.2.0.3.0 - Production

Start Date                30-JAN-2012 21:24:40

Uptime                    0 days 0 hr. 0 min. 1 sec

Trace Level               off

Security                  ON: Local OS Authentication

SNMP                      OFF

Listener Parameter File /u01/app/oracle/product/11.2.0.3/db_1/network/admin/listener.ora

Listener Log File        /u01/app/oracle/diag/tnslsnr/gg1/listener/alert/log.xml

Listening Endpoints Summary...

 (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=gg1)(PORT=1521)))

 (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))

The listener supports no services

The command completed successfully

 

 

参考：Dave的blog  http://blog.csdn.net/tianlesoftware/article/details/6246151

                                   http://blog.csdn.net/tianlesoftware/article/details/7220657