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Oracle訪問Sybase數(shù)據(jù)庫的方法

數(shù)據(jù)庫
Oracle數(shù)據(jù)庫是很多人都熟悉的數(shù)據(jù)庫系統(tǒng),Sybase數(shù)據(jù)庫在功能上不如Oracle數(shù)據(jù)庫,Oracle數(shù)據(jù)庫操作簡單,并且功能比較齊全,本文主要為大家介紹Oracle訪問Sybase數(shù)據(jù)庫的方法。

配置TRANSPARENT GATEWAY FOR Sybase步驟

  1.Oracle所在服務(wù)器上安裝Sybase client(或者在同一臺server上安裝Oracle、Sybase服務(wù)器),確保能夠訪問Sybase數(shù)據(jù)庫;

  2.安裝TRANSPARENT GATEWAY FOR Sybase選件,要用自定義安裝。正確選擇Sybase的安裝目錄;

  3.選擇一個sid字符串準備賦給Sybase數(shù)據(jù)庫。如:tg4sybs設(shè)置Sybase的dll路徑到環(huán)境變量PATH(這一步很重要);

  4.修改初始化文件,默認的是:

  Oracle_HOME\tg4sybs\admin\inittg4sybs.ora

  設(shè)置參數(shù)

  HS_FDS_CONNECT_INFO

  格式:

  HS_FDS_CONNECT_INFO= server_name. database_name[,INTERFACE= interface_file]

  server_name. database_name是大小寫敏感的。

  INTERFACE可選

  例子:如下

  # This is a sample agent init file that contains the HS parameters that are# needed for the Transparent Gateway for Sybase## HS init parameters#HS_FDS_CONNECT_INFO=migration_serv.taxHS_FDS_TRACE_LEVEL= OFFHS_FDS_RECOVERY_ACCOUNT=RECOVERHS_FDS_RECOVERY_PWD=RECOVER ## Environment variables required for Sybase#set SYBASE=d:\sybase

  上例中

  server_name是migration_serv

  database_name是tax

  5.配置oracle網(wǎng)絡(luò)服務(wù)的listener,配置文件是:listener.ora

  默認路徑:ORACLE_HOME\network\admin

  加入如下:

  SID_LIST_LISTENER=(SID_LIST=(SID_DESC=(SID_NAME= gateway_sid)(ORACLE_HOME= oracle_home_directory)(PROGRAM=tg4sybs)))

  gateway_sid就是3選擇的sid字符串

  oracle_home_directory是ORACLE_HOME

  tg4sybs若是SYBASE是特定的。如果是其他數(shù)據(jù)庫,會不同。

  例子如下:

  (SID_DESC=(SID_NAME=tg4sybs) (ORACLE_HOME = D:\oracle\ora92)(PROGRAM=tg4sybs))

  6.停止監(jiān)聽

  lsnrctl stop

  重新啟動監(jiān)聽程序

  lsnrctl start

  7.配置oracle server的tnsnames.ora使其能夠訪問sybase

  connect_descriptor=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP) (HOST= host_name)(PORT= port_number)) (CONNECT_DATA=(SID= gateway_sid))(HS=OK))

  connect_descriptor是連接串,任取,一般為sybs

  host_name:oracle server的name

  port_number:oracle監(jiān)聽端口

  gateway_sid就是3選擇的sid字符串

  例子如下:

  sybs=(DESCRIPTION=(ADDRESS_LIST =(ADDRESS=(PROTOCOL=TCP) (HOST= dw-server1)(PORT= 1521))) (CONNECT_DATA=(SID= tg4sybs))(HS=OK))

  8.建立database link

  如:

  CREATE DATABASE LINK sybs CONNECT TO sa IDENTIFIED BY prient USING 'SBYS' ;

  即可訪問sybase 數(shù)據(jù)庫。

  需要注意的是,sybase數(shù)據(jù)庫的表名,字段名,如果是小寫的,那么在oracle里訪問的時候要加上雙引號""

【編輯推薦】

  1. Oracle臨時表的創(chuàng)建
  2. SYBASE數(shù)據(jù)庫系統(tǒng)管理經(jīng)驗
  3. Sybase數(shù)據(jù)庫維護技巧總結(jié)
  4. .NET連接Sybase數(shù)據(jù)庫的幾種方法
責任編輯:迎迎 來源: 比特網(wǎng)
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