Oracle9i连接Sybase的透明网关配置

核心提示：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，Oracle9i连接

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　　g4sybsadmininittg4sybs.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 etworkadmin

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_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：

$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
(SID_DESC=
(SID_NAME=tg4sybs)
(ORACLE_HOME = D:oracleora92)
(PROGRAM=tg4sybs)
)
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

6.停止监听

lsnrctl stop

重新启动监听程序

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，任取，一般为sybs

host_name：oracle server的name

port_number：oracle监听端口

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;