Oracle 11g透明网关连接Sqlserver 2000

一、环境

公司网站系统使用的是IIS + Oracle

但公司某系统使用的是Sqlserver 2000, 但其数据需要做成报表放到网站上，为简化编程，使用Oracle做透明网关，定期从Sqlserver 抓取数据的方式

A: Web Server

• OS: Windows Server 2008
• IP: 10.108.3.10
• 安装软体：IIS, Oracle Client
• 

B: Oralce DB Server

• OS: Windows Server 2008
• IP: 10.108.3.20
• 安装软体： Oracle DB, Oracle Gateway
• 

C: Sqlserver 2000 DB Server

• OS: Windows Server 2003
• IP: 10.108.5.100
• 安装软体: Sqlserver 2000

这里面A和C的安装配置都很简单，主要说下B机器 Oracle透明网关的配置

二、Oracle透明网关配置

1. gateway安装

当然是要先安装好我们的Oracle DB,做好其它业务。然后再来安装Gateway

2. 配置 E:\Oracle\product\11.2.0\tg_1\dg4msql\admin\initdg4msql.ora

[10.108.5.100].MSSQLSERVER.SQLDB HS_FDS_TRACE_LEVEL=OFF HS_FDS_RECOVERY_ACCOUNT=RECOVER HS_FDS_RECOVERY_PWD=RECOVER

Oracle Gateway在此文件中默认将sqlserver 2000的IP，实例名，数据库名以 / 分隔，这种设置后续会报错，改为以 . 分隔则OK

#HS_FDS_CONNECT_INFO=[10.108.5.100]/MSSQLSERVER/SQLDB

3. 配置E:\Oracle\product\11.2.0\tg_1\NETWORK\ADMIN\listener.ora

dg4msql =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.108.3.20)(PORT = 1522))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = dg4msql)
    )
    (HS = OK)
  )

5. 配置E:\Oracle\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora

dg4msql =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.108.3.20)(PORT = 1522))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = dg4msql)
    )
    (HS = OK)
  )

ORACLR_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
    (CONNECT_DATA =
      (SID = CLRExtProc)
      (PRESENTATION = RO)
    )
  )

7. 建立DB link

-- Create database link
create database link SQLSERVERLINK
  connect to sa identified by password
  using 'dg4msql';