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oracle通过透明网关(Oracle Transparent Geteways),访问ms sql server和其他数据库

原创 Linux操作系统 作者:jst143 时间:2011-03-16 09:19:26 0 删除 编辑

oracle通过透明网关(Oracle Transparent Geteways),访问ms sql server和其他数据库

环境:
    1、在安装有oracle服务器端,ms sql server的客户端,通过oracle的透明网关访问ms sql server数据库
    2、在ms sql server服务器上创建用户conn_ora,并且要能访问ms sql server数据库msdb

安装Oracle Transparent Geteways:
    1、'开始'菜单的'Oracle Installation Products'下的'Universal Installer'
       \\192.168.0.8\e$\数据工具\oracle9.2\ORANT920\ORA92_1\NT\I386\stage\products.jar
       下一步-
    2、选择安装类型:
       自定义,下一步
    3、选择可用产品组件:
       将 'Oracle Transparent Geteways 9.2.0.1.0'下的'Oracle Transparent Geteways for Microsoft SQL Server 9.2.0.1.0'选中;
       将 'Oracle Transparent Geteways 9.2.0.1.0'下的'Oracle Transparent Geteways for Sybase 9.2.0.1.0'选中;
       下一步;
    4、设置Sybase路径
       选择你的'SYBASE的完整安装路径';
       下一步
    5、设置数据库服务器名 和数据库名称???
       Microsoft SQL Server:192.168.0.111
       Microsoft SQL 数据库:msdb
       服务器名称或者ip地址,数据库名字
    6、继续安装:
       \\192.168.0.8\e$\数据工具\oracle9.2\ORANT920\ORA92_2\NT\I386\stage
       \\192.168.0.8\e$\数据工具\oracle9.2\ORANT920\ORA92_3\NT\I386\stage
    7、安装完成:
       此时,oracle安装主目录下有了'tg4msql'目录
       C:\oracle\ora92\tg4msql

设置环境参数,创建dblink:
    1、C:\oracle\ora92\tg4msql\admin下的inittg4msql.ora文件
       文件内容:
            # This is a sample agent 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=ZZL;DATABASE=MSDB"
            HS_FDS_TRACE_LEVEL=OFF
            HS_FDS_RECOVERY_ACCOUNT=RECOVER
            HS_FDS_RECOVERY_PWD=RECOVER
       说明:
           HS_FDS_CONNECT_INFO=ZZL.MSDB和
           HS_FDS_CONNECT_INFO="SERVER=ZZL;DATABASE=MSDB"和
           HS_FDS_CONNECT_INFO="SERVER=192.168.0.111;DATABASE=MSDB"
           都可以,两种写法,其中‘SERVER’是服务器名称或者ip,DATABASE是数据库名称,
           当然,如果在192.168.0.111这台服务器上,有两个sql server实例,则使用‘服务器名\实例名’的方式设置上面的SERVER值,
           如:HS_FDS_CONNECT_INFO="SERVER=ZZL\MSSQLSERVER;DATABASE=MSDB"

 


    2、设置listener.ora文件
       位置:C:\oracle\ora92\network\admin
       文件内容:
                SID_LIST_LISTENER =
                  (SID_LIST =
                    (SID_DESC =
                      (SID_NAME = PLSExtProc)
                      (ORACLE_HOME = C:\oracle\ora92)
                      (PROGRAM = extproc)
                    )
                    (SID_DESC =
                      (GLOBAL_DBNAME = orademo)
                      (PROGRAM = orademo)
                      (ORACLE_HOME = C:\oracle\ora92)
                      (SID_NAME = orademo)
                    )
                    (SID_DESC =
                      (PROGRAM = tg4msql)
                      (ORACLE_HOME = C:\oracle\ora92)
                      (SID_NAME = tg4msql)
                    )
                  )
        其中新增:
            (SID_DESC =
              (PROGRAM = tg4msql)
              (ORACLE_HOME = C:\oracle\ora92)      #oracle的主目录
              (SID_NAME = tg4msql)
            )

    3、配置tnsnames.ora文件
       位置:C:\oracle\ora92\network\admin
       文件内容:
            # TNSNAMES.ORA Network Configuration File: C:\oracle\ora92\network\admin\tnsnames.ora
            # Generated by Oracle configuration tools.
            SDLGDB =
              (DESCRIPTION =
                (ADDRESS_LIST =
                  (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.8)(PORT = 1521))
                )
                (CONNECT_DATA =
                  (SID = SSTORA)
                  (SERVER = DEDICATED)
                )
              )
            RADEMO =
              (DESCRIPTION =
                (ADDRESS_LIST =
                  (ADDRESS = (PROTOCOL = TCP)(HOST = zzl)(PORT = 1521))
                )
                (CONNECT_DATA =
                  (SID = orademo)
                  (SERVER = DEDICATED)
                )
              )
            zzl_sql200 =   #数据库连接名称,任意命名
              (DESCRIPTION =
                (ADDRESS_LIST =
                  (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.111)(PORT = 1521))   #'192.168.0.111'为 oracle服务器的机器名
                )
                (CONNECT_DATA =
                  (SID = tg4msql)
                )
                (HS=OK)   #Oracle Server要调用异构服务来处理
              )
       


        其中新增:
            zzl_sql200 =   #数据库连接名称,任意命名
              (DESCRIPTION =
                (ADDRESS_LIST =
                  (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.111)(PORT = 1521))   #'192.168.0.111'为 oracle服务器的机器名
                )
                (CONNECT_DATA =
                  (SID = tg4msql)
                )
                (HS=OK)   #Oracle Server要调用异构服务来处理
              )

    4、配置init.ora.1115200612231
       位置:C:\oracle\admin\orademo\pfile
       将global_names设置为真值,及global_names=true

    5、重新启动服务:
       在window的开始的运行中执行:
       net stop OracleOraHome92TNSListener
       net stop OracleServiceORADEMO
       net start OracleOraHome92TNSListener
       net start OracleServiceORADEMO
      
       说明:OracleOraHome92TNSListener 是监听服务,OracleServiceORADEMO是实例服务
                 
    6、创建dblink:
       以普通用户登录oracle:如cs/cs@orademo
      
       --drop DATABASE LINK link_zhaozhenlong;
       CREATE  DATABASE LINK link_zhaozhenlong CONNECT TO "sa" IDENTIFIED BY "xxb" USING 'zzl_sql200';
      
       说明:ms sql server的用户名和密码必须小写,而且要加双引号,
       否则会报如下错误:
              错误信息:
                    ORA-28500: connection from ORACLE to a non-Oracle system returned this messsage:
                    [Transparent gateway from MSSQL][Microsoft][ODBC SQL Server Driver][SQL Server]??
                    'sa'????? (SQL State:28000; SQL Code: 18456)
                    ORA-02063: preceding 2 lines from LINK_ZZL
              错误原因:
                    在CREATE  DATABASE LINK LINK_ZZL的连接字符串中,ms sql server的用户名和密码必须小写,而且要加双引号

     7、在pl/sql中执行:
        select * from sysobjects@link_zhaozhenlong where rownum <=5;
        结果如下:
            1    sysrowsetcolumns    4    S  4   0   0   0   0   0   2005-10-14 1:36:15
            2    sysrowsets               5    S  4   0   0   0   0   0   2005-10-14 1:36:15
            3    sysallocunits            7    S  4   0   0   0   0   0   2005-10-14 1:36:15
            4    sysfiles1                   8    S  4   0   0   0   0   0   2003-4-8 9:13:38
            5    syshobtcolumns      13   S  4   0   0   0   0   0   2005-10-14 1:36:15
       
        访问dblink时说明:
            这是基于网关的方式,因此不能在断开网络的情况下本地的oracle连接本地的ms sql server
            否则会报如下错误:
            ORA-28545: error diagnosed by Net8 when connecting to an agent
            NCRO: Failed to make RSLV connection
            ORA-02063: preceding 2 lines from LINK_ZZL

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