After Oracle10gR2 is installed in CentOS6.3 and you reactivate it, you will find that Oracle is not started on your own. this is normal because Oracle installation in Linux does not start on your own, you must set relevant parameters. First, we will introduce how to start oracle. 1. start Oracle in Linux and log on to CentOS. switch to oracle User permissions # su? Oracle
After installing Oracle 10g R2 in CentOS 6.3 and restarting it, you will find that Oracle is not started on your own. this is normal because Oracle installation in Linux does not start on your own, you must set relevant parameters. First, we will introduce how to start oracle.
1. start Oracle in Linux
Log on to CentOS and switch to oracle User permissions.
# Su? Oracle
Enter:
$ Sqlplus "/as sysdba"
The original image will become
SQL>
Enter
SQL> startup
You can start the database normally.
In addition, the command to stop the database is as follows:
SQL> shutdown immediate
2. check whether the Oracle DB listener is normal
Return to terminal mode and enter:
$ Lsnrctl status
Check to see if the listener is started
If it is not started, enter:
$ Lsnrctl start
Start listener
SQL> conn sys @ orcl as sysdba
Then enter the password and sys will log on to the database as sysdba.
III. start emctl
In addition, we can also find that http://localhost.localdomain: 1158/em is currently no response, here to start another, the startup command is as follows:
$ Emctl start dbconsole
The command runs for a long time. the execution result is as follows:
After you manually start the Oracle database, create a script for the system to start Oracle.
4. Oracle startup and stop scripts
1. modify the Oracle system configuration file:/etc/oratab. Only in this way can dbstart and dbshut of Oracle be used.
# Vi/etc/oratab
Orcl:/opt/oracle/102: Y
# Entries are of the form:
# $ ORACLE_SID: $ ORACLE_HOME: :
2. create the file oracle under/etc/init. d/. the content is as follows:
#!/bin/sh # chkconfig: 35 80 10 # description: Oracle auto start-stop script.## Set ORA_HOME to be equivalent to the $ORACLE_HOME# from which you wish to execute dbstart and dbshut;## Set ORA_OWNER to the user id of the owner of the# Oracle database in ORA_HOME.ORA_HOME=/opt/oracle/102 ORA_OWNER=oracle if [ ! -f $ORA_HOME/bin/dbstart ] then echo "Oracle startup: cannot start" exit fi case "$1" in 'start')# Start the Oracle databases: echo "Starting Oracle Databases ... " echo "-------------------------------------------------" >> /var/log/oracle date +" %T %a %D : Starting Oracle Databases as part of system up." >> /var/log/oracle echo "-------------------------------------------------" >> /var/log/oracle su - $ORA_OWNER -c "$ORA_HOME/bin/dbstart" >>/var/log/oracle echo "Done" # Start the Listener: echo "Starting Oracle Listeners ... " echo "-------------------------------------------------" >> /var/log/oracle date +" %T %a %D : Starting Oracle Listeners as part of system up." >> /var/log/oracle echo "-------------------------------------------------" >> /var/log/oracle su - $ORA_OWNER -c "$ORA_HOME/bin/lsnrctl start" >>/var/log/oracle echo "Done." echo "-------------------------------------------------" >> /var/log/oracle date +" %T %a %D : Finished." >> /var/log/oracle echo "-------------------------------------------------" >> /var/log/oracle touch /var/lock/subsys/oracle;; 'stop')# Stop the Oracle Listener: echo "Stoping Oracle Listeners ... " echo "-------------------------------------------------" >> /var/log/oracle date +" %T %a %D : Stoping Oracle Listener as part of system down." >> /var/log/oracle echo "-------------------------------------------------" >> /var/log/oracle su - $ORA_OWNER -c "$ORA_HOME/bin/lsnrctl stop" >>/var/log/oracle echo "Done." rm -f /var/lock/subsys/oracle# Stop the Oracle Database: echo "Stoping Oracle Databases ... " echo "-------------------------------------------------" >> /var/log/oracle date +" %T %a %D : Stoping Oracle Databases as part of system down." >> /var/log/oracle echo "-------------------------------------------------" >> /var/log/oracle su - $ORA_OWNER -c "$ORA_HOME/bin/dbshut" >>/var/log/oracle echo "Done." echo "" echo "-------------------------------------------------" >> /var/log/oracle date +" %T %a %D : Finished." >> /var/log/oracle echo "-------------------------------------------------" >> /var/log/oracle;; 'restart')$0 stop$0 start;; esac
3. change file permissions
# Chmod 755/etc/init. d/oracle
4. add a service
# Chkconfig -- level 35 oracle on
5. You need to stop the database before shutting down or restarting the machine.
# Ln-s/etc/init. d/oracle/etc/rc0.d/K01oracle // shutdown
# Ln-s/etc/init. d/oracle/etc/rc6.d/K01oracle // restart
6. usage
# Service oracle start // start oracle
# Service oracle stop // close oracle
# Service oracle restart // restart oracle
7. test
A. Auto Start
Last login: Mon Nov 26 19:57:06 2012 from 10.0.0.145[root@ORS ~]# su - oracle[oracle@ORS ~]$ sqlplus "/as sysdba"SQL*Plus: Release 10.2.0.1.0 - Production on Mon Nov 26 20:07:33 2012Copyright (c) 1982, 2005, Oracle. All rights reserved.Connected to:Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - ProductionWith the Partitioning, OLAP and Data Mining optionsSQL> set linesize 300;SQL> set pagesize 30;SQL> select * from scott.emp; EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO---------- ---------- --------- ---------- --------- ---------- ---------- ---------- 7369 SMITH CLERK 7902 17-DEC-80 800 20 7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30 7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30 7566 JONES MANAGER 7839 02-APR-81 2975 20 7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30 7698 BLAKE MANAGER 7839 01-MAY-81 2850 30 7782 CLARK MANAGER 7839 09-JUN-81 2450 10 7788 SCOTT ANALYST 7566 19-APR-87 3000 20 7839 KING PRESIDENT 17-NOV-81 5000 10 7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30 7876 ADAMS CLERK 7788 23-MAY-87 1100 20 7900 JAMES CLERK 7698 03-DEC-81 950 30 7902 FORD ANALYST 7566 03-DEC-81 3000 20 7934 MILLER CLERK 7782 23-JAN-82 1300 1014 rows selected.SQL>
B. service oracle stop
SQL> Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - ProductionWith the Partitioning, OLAP and Data Mining options[oracle@ORS ~]$ logout[root@ORS ~]# service oracle stopStoping Oracle Listeners ... Done.Stoping Oracle Databases ... Done.[root@ORS ~]# su - oracle[oracle@ORS ~]$ sqlplus "/as sysdba"SQL*Plus: Release 10.2.0.1.0 - Production on Mon Nov 26 20:17:20 2012Copyright (c) 1982, 2005, Oracle. All rights reserved.Connected to an idle instance.SQL> set linesize 300;SQL> set pagesize 30;SQL> select * from scott.emp;select * from scott.emp*ERROR at line 1:ORA-01034: ORACLE not availableSQL>
C. service oracle start
SQL> Disconnected[oracle@ORS ~]$ logout[root@ORS ~]# service oracle startStarting Oracle Databases ... DoneStarting Oracle Listeners ... Done.[root@ORS ~]#
D. service oracle restart
[root@ORS ~]# service oracle restartStoping Oracle Listeners ... Done.Stoping Oracle Databases ... Done.Starting Oracle Databases ... DoneStarting Oracle Listeners ... Done.[root@ORS ~]#
Now, the script for starting and stopping the Oracle Service and the auto-starting setting for starting the Oracle service are complete.