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oracle通過透明網(wǎng)關(guān),創(chuàng)建dblink,訪問ms sql server和其他數(shù)據(jù)庫 -...

oracle通過透明網(wǎng)關(guān),創(chuàng)建dblink,訪問ms sql server和其他數(shù)據(jù)庫 - jerry - JavaEye技術(shù)網(wǎng)站

默認(rèn)分類 2010-12-09 14:08:08 閱讀100 評(píng)論0   字號(hào): 訂閱

oracle通過透明網(wǎng)關(guān)(Oracle Transparent Geteways),訪問ms sql server和其他數(shù)據(jù)庫

環(huán)境:
    1、在安裝有oracle服務(wù)器端,ms sql server的客戶端,通過oracle的透明網(wǎng)關(guān)訪問ms sql server數(shù)據(jù)庫
    2、在ms sql server服務(wù)器上創(chuàng)建用戶conn_ora,并且要能訪問ms sql server數(shù)據(jù)庫msdb

安裝Oracle Transparent Geteways:
    1、'開始'菜單的'Oracle Installation Products'下的'Universal Installer'
       \\192.168.0.8\e$\數(shù)據(jù)工具\(yùn)oracle9.2\ORANT920\ORA92_1\NT\I386\stage\products.jar
       下一步-
    2、選擇安裝類型:
       自定義,下一步
    3、選擇可用產(chǎn)品組件:
       將 'Oracle Transparent Geteways 9.2.0.1.0'下的'Oracle Transparent Geteways for Microsoft SQL Server 9.2.0.1.0'選中;
       將 'Oracle Transparent Geteways 9.2.0.1.0'下的'Oracle Transparent Geteways for Sybase 9.2.0.1.0'選中;
       下一步;
    4、設(shè)置Sybase路徑
       選擇你的'SYBASE的完整安裝路徑';
       下一步
    5、設(shè)置數(shù)據(jù)庫服務(wù)器名 和數(shù)據(jù)庫名稱???
       Microsoft SQL Server:192.168.0.111
       Microsoft SQL 數(shù)據(jù)庫:msdb
       服務(wù)器名稱或者ip地址,數(shù)據(jù)庫名字
    6、繼續(xù)安裝:
       \\192.168.0.8\e$\數(shù)據(jù)工具\(yùn)oracle9.2\ORANT920\ORA92_2\NT\I386\stage
       \\192.168.0.8\e$\數(shù)據(jù)工具\(yùn)oracle9.2\ORANT920\ORA92_3\NT\I386\stage
    7、安裝完成:
       此時(shí),oracle安裝主目錄下有了'tg4msql'目錄
       C:\oracle\ora92\tg4msql

設(shè)置環(huán)境參數(shù),創(chuàng)建dblink:
    1、C:\oracle\ora92\tg4msql\admin下的inittg4msql.ora文件
       文件內(nèi)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
       說明:
           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,兩種寫法,其中‘SERVER’是服務(wù)器名稱或者ip,DATABASE是數(shù)據(jù)庫名稱,
           當(dāng)然,如果在192.168.0.111這臺(tái)服務(wù)器上,有兩個(gè)sql server實(shí)例,則使用‘服務(wù)器名\實(shí)例名’的方式設(shè)置上面的SERVER值,
           如:HS_FDS_CONNECT_INFO="SERVER=ZZL\MSSQLSERVER;DATABASE=MSDB"




    2、設(shè)置listener.ora文件
       位置:C:\oracle\ora92\network\admin
       文件內(nèi)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的主目錄
              (SID_NAME = tg4msql)
            )

    3、配置tnsnames.ora文件
       位置:C:\oracle\ora92\network\admin
       文件內(nèi)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)
                )
              )
            ORADEMO =
              (DESCRIPTION =
                (ADDRESS_LIST =
                  (ADDRESS = (PROTOCOL = TCP)(HOST = zzl)(PORT = 1521))
                )
                (CONNECT_DATA =
                  (SID = orademo)
                  (SERVER = DEDICATED)
                )
              )
            zzl_sql200 =   #數(shù)據(jù)庫連接名稱,任意命名
              (DESCRIPTION =
                (ADDRESS_LIST =
                  (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.111)(PORT = 1521))   #'192.168.0.111'為 oracle服務(wù)器的機(jī)器名
                )
                (CONNECT_DATA =
                  (SID = tg4msql)
                )
                (HS=OK)   #Oracle Server要調(diào)用異構(gòu)服務(wù)來處理
              )
       


        其中新增:
            zzl_sql200 =   #數(shù)據(jù)庫連接名稱,任意命名
              (DESCRIPTION =
                (ADDRESS_LIST =
                  (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.111)(PORT = 1521))   #'192.168.0.111'為 oracle服務(wù)器的機(jī)器名
                )
                (CONNECT_DATA =
                  (SID = tg4msql)
                )
                (HS=OK)   #Oracle Server要調(diào)用異構(gòu)服務(wù)來處理
              )

    4、配置init.ora.1115200612231
       位置:C:\oracle\admin\orademo\pfile
       將global_names設(shè)置為真值,及global_names=true

    5、重新啟動(dòng)服務(wù):
       在window的開始的運(yùn)行中執(zhí)行:
       net stop OracleOraHome92TNSListener
       net stop OracleServiceORADEMO
       net start OracleOraHome92TNSListener
       net start OracleServiceORADEMO
      
       說明:OracleOraHome92TNSListener 是監(jiān)聽服務(wù),OracleServiceORADEMO是實(shí)例服務(wù)
                 
    6、創(chuàng)建dblink:
       以普通用戶登錄oracle:如cs/cs@orademo
      
       --drop DATABASE LINK link_zhaozhenlong;
       CREATE  DATABASE LINK link_zhaozhenlong CONNECT TO "sa" IDENTIFIED BY "xxb" USING 'zzl_sql200';
      
       說明:ms sql server的用戶名和密碼必須小寫,而且要加雙引號(hào),
       否則會(huì)報(bào)如下錯(cuò)誤:
              錯(cuò)誤信息:
                    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
              錯(cuò)誤原因:
                    在CREATE  DATABASE LINK LINK_ZZL的連接字符串中,ms sql server的用戶名和密碼必須小寫,而且要加雙引號(hào)

   


     7、在pl/sql中執(zhí)行:
        select * from sysobjects@link_zhaozhenlong where rownum <=5;
        結(jié)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
       
        訪問dblink時(shí)說明:
            這是基于網(wǎng)關(guān)的方式,因此不能在斷開網(wǎng)絡(luò)的情況下本地的oracle連接本地的ms sql server
            否則會(huì)報(bào)如下錯(cuò)誤:
            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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