LINUX ORACLE10--如何启动

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启动数据库实例,分为两步:第一步,启动监听;第二步,启动数据库实例。
 
一、如何启动数据库实例
   1.进入到sqlplus启动实例
[oracle@redhat ~]$ su - oracle                                 --“切换到oracle用户”
Password:
[oracle@redhat ~]$ lsnrctl start                               --“打开监听”

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 14-OCT-2009 19:06:40
Copyright (c) 1991, 2005, Oracle.  All rights reserved.
Starting /home/oracle/product/10g/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 10.2.0.1.0 - Production
System parameter file is /home/oracle/product/10g/network/admin/listener.ora
Log messages written to /home/oracle/product/10g/network/log/listener.log
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC2)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=redhat)(PORT=1522)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC2)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date                14-OCT-2009 19:06:40
Uptime                    0 days 0 hr. 0 min. 0 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /home/oracle/product/10g/network/admin/listener.ora
Listener Log File         /home/oracle/product/10g/network/log/listener.log
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC2)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=redhat)(PORT=1522)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
[oracle@redhat ~]$ sqlplus /nolog                                --“进入到sqlplus”

SQL*Plus: Release 10.2.0.1.0 - Production on Wed Oct 14 19:06:45 2009
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
SQL> conn /as sysdba                                              --“连接到sysdba”
Connected to an idle instance.
SQL> startup                                                     --“启动数据库实例”
ORACLE instance started.

Total System Global Area  285212672 bytes
Fixed Size      1218968 bytes
Variable Size     88082024 bytes
Database Buffers   188743680 bytes
Redo Buffers      7168000 bytes
Database mounted.
Database opened.
SQL> shutdown immediate                                          --“关闭数据库实例”
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
[oracle@redhat ~]$ lsnrctl stop                                 --“关闭监听”

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 14-OCT-2009 19:08:06
Copyright (c) 1991, 2005, Oracle.  All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC2)))
The command completed successfully

 
   2.用dbstart和dbshut启动和关闭数据库实例
 
先启动监听 lsnrctl start
启动实例  dbstart
 
使用dbstart命令启动数据库比较方便,但是在linux上安装好oracle之后,第一次使用dbstart命令可能会报如下错误:
 
Failed to auto-start Oracle Net Listene using /ade/vikrkuma_new/oracle/bin/tnslsnr
 
看起来貌似是监听没有起来,可是实际上,监听可以成功启动。
我们来看一下dbstart脚本,该脚本放在$ORACLE_HOME/bin下面。
搜索dbstart里面的tnslsnr:
 
grep tnslsnr dbstart
 
返回结果:
 if [ -f $ORACLE

_HOME_LISTNER/bin/tnslsnr ] ; then
    echo "Failed to auto-start Oracle Net Listene using $ORACLE_HOME_LISTNER/bin/tnslsnr"


返回结果中发现有$ORACLE_HOME_LISTNER变量,有可能是该变量的路径不对,我们继续搜索ORACLE_HOME_LISTNER
 
grep ORACLE_HOME_LISTNER dbstart
 
返回结果:
# 3) Set ORACLE_HOME_LISTNER
ORACLE_HOME_LISTNER=/ade/vikrkuma_new/oracle
if [ ! $ORACLE_HOME_LISTNER ] ; then
  echo "ORACLE_HOME_LISTNER is not SET, unable to auto-start Oracle Net Listener"
  LOG=$ORACLE_HOME_LISTNER/listener.log
  if [ -f $ORACLE_HOME_LISTNER/bin/tnslsnr ] ; then
    $ORACLE_HOME_LISTNER/bin/lsnrctl start >> $LOG 2>&1 &
    export VER10LIST=`$ORACLE_HOME_LISTNER/bin/lsnrctl version | grep "LSNRCTL for " | cut -d' ' -f5 | cut -d'.' -f1`
    echo "Failed to auto-start Oracle Net Listene using $ORACLE_HOME_LISTNER/bin/tnslsnr"
        $LOGMSG "Restart Oracle Net Listener using an alternate ORACLE_HOME_LISTNER: lsnrctl start"


我们发现ORACLE_HOME_LISTNER=/ade/vikrkuma_new/oracle
中,指定的路径不对,需要对这一行重新编辑,使其路径制定到$ORACLE_HOME
用vi编辑dbstart,将ORACLE_HOME_LISTNER=/ade/vikrkuma_new/oracle更改为
export ORACLE_HOME_LISTNER=$ORACLE_HOME
 
然后保存退出,此时再运行dbstart,已经不报错了,但是没有任何反应,ps一下进程,没有oracle的进程,说明oracle实例没有正常启动。
 
此时的原因是在/etc/oratab的设置问题,我们cat一下,发现
zgz:/home/oracle/product/10g:N
最后设置的是"N"(我的环境中只有一个实例,因此只有一行配置语句),我们需要把“N”修改为“Y”。
 
以上的工作做好之后,dbstart就可以正常使用了:
 
[oracle@redhat bin]$ lsnrctl start                                   --“启动监听”
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 14-OCT-2009 19:44:53
Copyright (c) 1991, 2005, Oracle.  All rights reserved.
Starting /home/oracle/product/10g/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 10.2.0.1.0 - Production
System parameter file is /home/oracle/product/10g/network/admin/listener.ora
Log messages written to /home/oracle/product/10g/network/log/listener.log
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC2)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=redhat)(PORT=1522)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC2)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date                14-OCT-2009 19:44:53
Uptime                    0 days 0 hr. 0 min. 0 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /home/oracle/product/10g/network/admin/listener.ora
Listener Log File         /home/oracle/product/10g/network/log/listener.log
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC2)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=redhat)(PORT=1522)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
[oracle@redhat bin]$ dbstart                                   --“启动数据库实例”
Processing Database instance "zgz": log file /home/oracle/product/10g/startup.log
[oracle@redhat bin]$ dbshut                                    --“关闭数据库实例”
[oracle@redhat bin]$ lsnrctl stop                              --“关闭监听”

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 14-OCT-2009 19:45:33
Copyright (c) 1991, 2005, Oracle.  All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC2)))
The command completed successfully

 
二、如何使数据库实例和linux系统一起启动
在/etc/rc.d/rc.local中加入如下语句即可实现同系统启动实例:
su - oracle -c "lsnrctl start"
su - oracle -c "dbstart"