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关于Oracle9i连接Sybase的透明网关配置

2018-05-21 08:00 星期一 所属: 数据库教程 浏览:240

关于Oracle9i连接Sybase的透明网关配置今天,小编为大家带来了新的关于数据库的内容。配置TRANSPARENT GATEWAY FOR Sybase步骤
1.Oracle所在服务器上安装sybase client(或者在同一台server上安装oracle、sybase服务器),确保能够访问sybase数据库;
2.安装TRANSPARENT GATEWAY FOR SYBASE选件,要用自定义安装。正确选择sybase的安装目录;
3.选择一个sid字符串准备赋给sybase数据库。如:tg4sybs设置SYBASE的dll路径到环境变量PATH(这一步很重要);
4.修改初始化文件,默认的是:

ORACLE_HOME\\tg4sybs\\admin\\inittg4sybs.ora

设置参数

HS_FDS_CONNECT_INFO

格式:

HS_FDS_CONNECT_INFO= server_name. database_name[,INTERFACE= interface_file]

server_name. database_name数据库是大小写敏感的。
INTERFACE可选
例子:如下

$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
# This is a sample agent init file that contains the HS parameters that are
# needed for the Transparent Gateway for Sybase
#
# HS init parameters
#
HS_FDS_CONNECT_INFO=migration_serv.tax
HS_FDS_TRACE_LEVEL=OFF
HS_FDS_RECOVERY_ACCOUNT=RECOVER
HS_FDS_RECOVERY_PWD=RECOVER
#
# Environment vaRIAbles required for Sybase
#
set SYBASE=d:\\sybase
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

上例中
server_name是migration_serv
database_name是tax
5.配置oracle网络服务的listener,配置文件是:listener.ora
默认路径: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选择的sid字符串oracle数据库
oracle_home_directory是ORACLE_HOME
tg4sybs若是SYBASE是特定的。如果是其他数据库,会不同。
例子如下:

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

6.停止**
lsnrctl stop
重新启动**程序
lsnrctl start
7.配置oracle server的tnsnames.ora使其能够访问sybase

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

connect_descriptor是连接串,mysql数据库任取,一般为sybs
host_name:oracle server的name
port_number:oracle**端口
gateway_sid就是3选择的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' ;

即可访问sybase 数据库。
需要注意的是,sybase数据库的表名,字段名,如果数据库设计和开发 是小写的,那么在oracle里访问的时候要加上双引号””
如:

SQL〉select "a" from "b"@sybs;

 

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