配置TRANSPARENT GATEWAY FOR SYBASE步骤

核心提示：gateway_sid就是3选择的sid字符串oracle_home_directory是ORACLE_HOMEtg4sybs若是SYBASE是特定的，如果是其他数据库，配置TRANSPARENT GATEWAY FOR SYBASE步骤(2)，会不同，例子如下：$$$$$$$$$$$$$$$$$$$$$$$$$$$$

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;