在Oracle数据库中建立透明网关环境

  来源：赛迪网技术社区    作者：gaoyuan007

1、安装Oracle 的transparent gateway 透明网关。

安装Oracle 选择自定义安装，然后再选择 安装透明网关，再进去选择 安装FOR SQLSERVER 的组件。

2、修改 oraclehome\ora92\tgsmsql\admin\inittg4msql.orq 文件

HS_FDS_CONNECT_INFO="SERVER=YIRONG-NO1;DATABASE=jsoct"
   HS_FDS_TRACE_LEVEL=OFF
   HS_FDS_RECOVERY_ACCOUNT=RECOVER
   HS_FDS_RECOVERY_PWD=RECOVER

说明可以通过 Oracle 工具中的migration WorkBench 进行配置。（过程中需要配置ODBC）

3、建立监听 修改Oracle 的 oraclehome\ora92\network\admin\listener.ora 文件。

# LISTENER.ORA Network Configuration File: 
F:\oracle\ora92\network\admin\listener.ora
# Generated by Oracle configuration tools.

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
      )
      (ADDRESS_LIST =
       (ADDRESS = (PROTOCOL = TCP)(HOST = yirong-no1)(PORT = 1521))
      )

    )
  )

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = F:\oracle\ora92)
      (PROGRAM = extproc)
    )

    (SID_DESC =
      (GLOBAL_DBNAME = ora9i2)
      (ORACLE_HOME = F:\oracle\ora92)
      (SID_NAME = ora9i2)
    )

    #连接 sqlserver
       (SID_DESC  =    
             (GLOBAL_DBNAME  =  tg4msql)    
             (PROGRAM  =  tg4msql)    
             (SID_NAME  =  tg4msql)  
             (ORACLE_HOME  =  F:\oracle\ora92)  
       )  

  )

4、修改TNS

TG4MSQL  =
 (DESCRIPTION=
   (ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521))
   (CONNECT_DATA=(SID=tg4msql))
   (HS=)
 )

5、创建DBLINK 说明建立的 用户名，密码要是 SQLSERVER 的用户名和密码

create PUBLIC DATABASE LINK oratoSql 
    CONNECT TO sa IDENTIFIED BY "lanwei"
    USING 'TG4MSQL' ;

6、测试数据的是否正常检索。