Oracle监听器Server端与Client端配置实例Oracle认证考试
文章作者 100test 发表时间 2009:08:11 21:44:00
来源 100Test.Com百考试题网
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Listener.ora、tnsnames.ora这两个文件常常因为格式问题而不好用,我平时都是配置好了留个备份,以后都是拷贝过去改改就好了!嘿嘿~~~
因为平时使用linux的时候较多,所以有时还会遇到sqlnet.ora这个文件有问题,直接给它删了就好了~~
有时在windows下装的oracle的listener服务就启动不了,遇到这种情况,直接去oracle的bin目录下面找到lsnrctl.exe那个文件,直接给它运行,弹出来的窗口不要关闭,就可以了。
Oracle Server端Listener.ora文件(一个instance):
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL=TCP)(HOST=hostname)(PORT=1521)) //主机名或IP及端口设置
)
)
)
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = database1) // database1为数据库instance名
(ORACLE_HOME = /opt/oracle/product/10.1.0) //oracle安装目录,根据安装情况更改
(PROGRAM = extproc)
)
)
Oracle Server端Listener.ora文件(两个instance):
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL=TCP)(HOST=hostname)(PORT=1521))
)
)
)
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = database1) // database1为数据库instance1名
(ORACLE_HOME = /opt/oracle/product/10.1.0)
(PROGRAM = extproc)
)
(SID_DESC =
(SID_NAME = database2) // database2为数据库instance2名
(ORACLE_HOME = /opt/oracle/product/10.1.0)
(PROGRAM = extproc)
)
)
Oracle Server端监听器启动、停止、查看状态命令:
$ lsnrctl start
$ lsnrctl stop
$ lsnrctl status
Oracle Client端Tnsnames.ora文件:
ORALOCAL = //别名oralocal
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = hostname)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = database1) //database1为SID名
)
)
Oracle Client端检查监听器连接状态用命令:
$ tnsping 别名
例如:用oracle用户执行命令 $ tnsping oralocal
编辑特别推荐:
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LISTENER = (
DESCRIPTION_LIST =
(DESCRIPTION = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = 0.0.0.0)(PORT = 1521)) )
)
执行lsnrctl reload使Listener生效:
su – oracle
lsnrctl reload
LSNRCTL for Linux: Version 10.2.0.4.0 - Production on 09-FEB-2009 13:59:38 Copyright (c) 1991, 2007, Oracle.
All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
The command completed successfully
lsnrctl status
LSNRCTL for Linux: Version 10.2.0.4.0 - Production on 12-FEB-2009 08:56:00
Copyright (c) 1991, 2007, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 10.2.0.4.0 - Production
Start Date 03-JAN-2009 03:47:39
Uptime 40 days 5 hr. 8 min. 20 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /ora10g/network/admin/listener.ora
Listener Log File /ora10g/network/log/listener.log
Listening Endpoints Summary……
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=0.0.0.0)(PORT=1521)))
Services Summary……
Service "PLSExtProc" has 1 instance(s)。
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service……
Service "test" has 1 instance(s)。
Instance "test", status UNKNOWN, has 1 handler(s) for this service……
The command completed successfully
6, 编辑Oracle所在计算机中的tnsnames.ora文件,便于建立dblink.注意,此tnsnames的配置可以支持tnsping,但是不能支持sqlplus登录,只用于dblink:
vi /ora10g/network/admin/tnsnames.ora
test =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
(CONNECT_DATA =
(SID = test)
)
(HS = OK))
7, 在Oracle Database建立dblink:
create public database link MYSQL
connect to "mysql username" identified by "mysql pwd"
using (DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP) (HOST = 127.0.0.1) (PORT =1521) )
(CONNECT_DATA = (SID= test) )
(HS=OK)
) ;
要注意用户名和密码处需要用双引号,否则Oracle所传输的都是大写字母,可能无法登录进入MySQL.
8, 由于MySQL中的表名的大小写敏感,因此需要在进行SQL查询时对表名用双引号扩起来
0select * from "tablename"@test
编辑特别推荐:
oracle认证考试费用
Oracle的入门心得