oracle 多实例 端口,Oracle一个实例配置多个listener或多个端口

一个Oracle实例对于多个监听，一个监听对于多个端口。

现在我们可以创建一个oracle实例一个监听的两个端口。这一共有两种方法：

在listener文件添加一行，具体如下：

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = jingyong)(PORT = 1521))

)

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = jingyong)(PORT = 1522))

)

)

这时我们只有重启监听，就可以用两个端口连接数据库实例了。。。。

当然我们也可以一个实例启动两个监听，但是具体只有一个监听起作用。

我们可以在一个数据库下，一个实例对于一个监听，但实例必须在不同目录。或者先建监听，再建实例。一样能达到效果。。。

具体配置如下：

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(SID_NAME = PLSExtProc)

(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db)

(PROGRAM = extproc)

)

(SID_DESC =

(GLOBAL_DBNAME = jingyong)

(ORACLE_HOME =/u01/app/oracle/product/10.2.0/db)

(SID_NAME = jingyong)

)

)

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = jingyong)(PORT = 1521))

)

)

SID_LIST_LISTENER_2 =

(SID_LIST =

(SID_DESC =

(SID_NAME = PLSExtProc)

(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db)

(PROGRAM = extproc)

)

(SID_DESC =

(GLOBAL_DBNAME = jingyong)

(ORACLE_HOME =/u01/app/oracle/product/10.2.0/db)

(SID_NAME = jingyong)

)

)

LISTENER_2 =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = jingyong)(PORT = 1522))

)

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = jingyong)(PORT = 1523))

)

)