服务端和客户端在同一台机器上，可以使用BEQ连接，BEQ连接可以理解为进程间直接通信，不需要走网络监听，性能更高。
可以参考MOS：How To Connect Using the Bequeath Protocol (BEQ) in 8I (文档 ID 181317.1)
Beq connection can be used between client and server on the same machine.
Connection is not using listener, so no listener configuration is required.
In tnsnames.ora add tns alias:
Under Microsoft Windows operating systems PROGRAM should contain only "
oracle":
(PROGRAM = oracle)
without any path or suffix.
For example, connecting to T816 through BEQ protocol with ORACLE_HOME=
/u08/oracle/product/8.1.6/bin/oracle
can be done using folowing tns alias:
T816-BEQ.WORLD =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =
(PROTOCOL = BEQ)
(PROGRAM = /u08/oracle/product/8.1.6/bin/oracle)
(ARGV0 = oracleT816)
(ARGS = ‘(DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=BEQ)))‘)
(ENVS = ‘ORACLE_HOME=/u08/oracle/product/8.1.6,ORACLE_SID=T816‘)
)
)
(CONNECT_DATA = (SID = T816))
)
To connect to T816 using Bequeth protocol now use:
sqlplus system/[email protected]
例如，我们在10.2.0.5 RAC的实例1上配置BEQ连接测试
1. 在tnsnames.ora 配置文件添加如下内容：
RACBEQ =
(DESCRIPTION =
(ADDRESS =
(PROTOCOL = BEQ)
(PROGRAM = /u01/app/oracle/product/10.2.0.5/dbhome_1/bin/oracle)
(ARGV0 = oraclejyrac1)
(ARGS = ‘(DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=BEQ)))‘)
(ENVS = ‘ORACLE_HOME=/u01/app/oracle/product/10.2.0.5/dbhome_1,ORACLE_SID=jyrac1‘)
)
(CONNECT_DATA =
(SERVICE_NAME = jyrac)
(INSTANCE_NAME = jyrac1)
)
)2. tnsping 测试通：
[[email protected] admin]$ tnsping racbeq
TNS Ping Utility for Linux: Version 10.2.0.5.0 - Production on 24-JAN-2017 18:05:48
Copyright (c) 1997, 2010, Oracle. All rights reserved.
Used parameter files:
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = BEQ) (PROGRAM = /u01/app/oracle/product/10.2.0.5/dbhome_1/bin/oracle) (ARGV0 = oraclejyrac1) (ARGS = ‘(DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=BEQ)))‘) (ENVS = ‘ORACLE_HOME=/u01/app/oracle/product/10.2.0.5/dbhome_1,ORACLE_SID=jyrac1‘)) (CONNECT_DATA = (SERVICE_NAME = jyrac) (INSTANCE_NAME = jyrac1)))
OK (30 msec)3. 本地通过BEQ协议连接到数据库：
[[email protected] admin]$ sqlplus system/[email protected]
SQL*Plus: Release 10.2.0.5.0 - Production on Tue Jan 24 17:37:08 2017
Copyright (c) 1982, 2010, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options
SQL> !ps -ef|grep BEQ
oracle 8102 1 0 17:37 ? 00:00:00 oraclejyrac1 (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=BEQ)))
oracle 8133 8100 0 17:37 pts/3 00:00:00 /bin/bash -c ps -ef|grep BEQ
SQL> 上面查看进程也可以确定进程确实是通过BEQ协议连接的。