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

HS_FDS_CONNECT_INFO=[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

SID_LIST_LISTENER =  

  (SID_LIST =

    (SID_DESC =

      (SID_NAME = dg4msql)    #此处为配置文件SID，要与initdg4msql.ora中的名字对应

      (ORACLE_HOME = E:\Oracle\product\11.2.0\tg_1)

      (PROGRAM = dg4msql)   #此处为配置文件目录名称，Oracle 11g中都为dg4msql，不需变更（注1）

    )

  )



LISTENER =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.108.3.20)(PORT = 1522))

      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1522))

    )

  )



ADR_BASE_LISTENER = E:\Oracle\product\11.2.0\tg_1

注1：如果将此处的dg4msql变掉，在最后通过Oracle访问SQL SERVER时会报以下错误

ORA-28545: 连接代理时 Net8 诊断到错误
Unable to retrieve text of NETWORK/NCR message 65535
ORA-02063: 紧接着 2 lines

4. 配置E:\Oracle\product\11.2.0\tg_1\NETWORK\ADMIN\tnsnames.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

SID_LIST_LISTENER =

  (SID_LIST =

    (SID_DESC =

      (SID_NAME = CLRExtProc)

      (ORACLE_HOME = E:\Oracle\product\11.2.0\dbhome_1)

      (PROGRAM = extproc)

      (ENVS = "EXTPROC_DLLS=ONLY:E:\Oracle\product\11.2.0\dbhome_1\bin\oraclr11.dll")

    )

#以下是其它业务的DB

    (SID_DESC =

      (GLOBAL_DBNAME = ORCL)

      (ORACLE_HOME = E:\Oracle\product\11.2.0\dbhome_1)

      (SID_NAME = ORCL)

    )

#以下是透明网关的设置

    (SID_DESC =

      (SID_NAME = dg4msql)

      (ORACLE_HOME = E:\Oracle\product\11.2.0\dbhome_1)

      (PROGRAM = dg4msql)

    )

  )



LISTENER =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.108.3.20)(PORT = 1521))

      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))

    )

  )



ADR_BASE_LISTENER = E:\Oracle

6. 配置E:\Oracle\product\11.2.0\dbhome_1\NETWORK\ADMIN\tnsnames.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';