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
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