Oracle中使用透明网关[gateways]数据链接到Sqlserver
测试环境介绍
1、ORACLEServer
Database version:10.2.0
IP:192.168.1.5
ORACLE_HOME:D:\oracle\product\10.2.0\db_1
2、Oracletransparent Gateway Server
Version:10.2.0
IP:192.168.1.15
安装目录 D:\oracle\product\10.2.0\tg_1
3、MS sqlserver
Sqlserver Version：2008R2
IP:192.168.1.25
原有oracle数据库，sqlserver数据库都已经在用了，需要导一些数据到oracle数据库中。
Step1：安装ORACLE gateways
略……
在安装透明网关过程中会询问你需要为那些数据库配置,选择里面的forsqlserver 就行
Step2:配置透明网关下的相关文件；
接下来的服务器,数据库可以不填;现在我们要做的是复制D:\oracle\product\10.2.0\tg_1\tg4msql\admin下的 inittg4msql.ora文件,并修改成名字为init<sid>.ora我这里测试连接GSLIMSDB_NingBo库，为配置方便改名为G5,所以就是initG5.ora内容为:
=========================脚===本===如===下============================
# This is a sampleagent init file that contains the HS parameters that are
# needed for the Transparent Gateway for SQL Server
#
# HS init parameters
#
HS_FDS_CONNECT_INFO="SERVER=192.168.1.25;DATABASE=G5"
HS_FDS_TRACE_LEVEL=OFF
HS_FDS_RECOVERY_ACCOUNT=RECOVER
HS_FDS_RECOVERY_PWD=RECOVER
======================================================================
如果在安装时配置的话生成的HS_FDS_CONNECT_INFO=192.168.1.25.G5连接会出问题，
HS_FDS_CONNECT_INFO的设置有多种格式，如：
HS_FDS_CONNECT_INFO=server_name.db_name，但这种写法server_name不能为IP，且端口必须为默认的1433，如：
HS_FDS_CONNECT_INFO=sqlserverhostname.G5
接下来是配置D:\oracle\product\10.2.0\tg_1\network\admin下的listener.ora文件
=========================脚===本===如===下============================
# listener.ora Network Configuration File:D:\oracle\product\10.2.0\tg_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER=
(SID_LIST =
(SID_DESC =
(SID_NAME= PLSExtProc)
(ORACLE_HOME = D:\oracle\product\10.2.0\tg_1)
(PROGRAM =extproc)
)
(SID_DESC =
(SID_NAME = G5)
(ORACLE_HOME = D:\oracle\product\10.2.0\tg_1)
(PROGRAM = tg4msql)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION=
(ADDRESS =(PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS =(PROTOCOL = TCP)(HOST = rdserver2)(PORT = 1521))
)
)
======================================================================
这里的红色部分是新配置上去的,别的都是默认的，然后再配置
D:\oracle\product\10.2.0\tg_1\network\admin下的tnsnames.ora文件:
=========================脚===本===如===下============================
# tnsnames.ora Network Configuration File:D:\oracle\product\10.2.0\tg_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
EXTPROC_CONNECTION_DATA=
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =(PROTOCOL = IPC)(KEY = EXTPROC1))
)
(CONNECT_DATA =
(SID =PLSExtProc)
(PRESENTATION = RO)
)
)
G5=
(DESCRIPTION=
(ADDRESS=
(PROTOCOL=TCP)(HOST=192.168.1.25)(PORT=1521))
(CONNECT_DATA=
(SID=G5)
)
(HS=OK)
)
======================================================================
Step3:启动或重新加载监听
查看监听状态
Step4:在oracle数据库上创建dblink 连接 sqlserver2008
=========================脚===本===如===下============================
create public database link con_mssql connect to "sa"identified by "password" using '(DESCRIPTION=
(ADDRESS=
(PROTOCOL=TCP)(HOST=192.168.1.15)(PORT=1521))
(CONNECT_DATA=
(SID=G5)
)
(HS=OK)
)';
======================================================================
然后就可以测试:
=========================脚===本===如===下============================
selectcount(*) from gs_t_ApplicationForm@con_mssql;
======================================================================
执行后不会出错，有结果那么透明网管配置完成;