1、安装oracle 的transparent gateway 透明网关。
安装ORACLE 选择自定义安装， 然后再选择 安装透明网关，再进去选择 安装FOR SQLSERVER 的组件。
2、修改 oraclehomeora92tgsmsqladmininittg4msql.orq 文件
HS_FDS_CONNECT_INFO="SERVER=YIRONG-NO1;DATABASE=jsoct"
HS_FDS_TRACE_LEVEL=OFF
HS_FDS_RECOVERY_ACCOUNT=RECOVER
HS_FDS_RECOVERY_PWD=RECOVER
说明 可以通过 ORACLE 工具中的migration WorkBench 进行配置。（过程中需要配置ODBC）
3、建立监听 修改oracle 的 oraclehomeora92networkadminlistener.ora 文件。
# LISTENER.ORA Network Configuration File: F:oracleora92networkadminlistener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = yirong-no1)(PORT = 1521))
)
)
)
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = F:oracleora92)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME = ora9i2)
(ORACLE_HOME = F:oracleora92)
(SID_NAME = ora9i2)
)
#连接 sqlserver
(SID_DESC =
(GLOBAL_DBNAME = tg4msql)
(PROGRAM = tg4msql)
(SID_NAME = tg4msql)
(ORACLE_HOME = F:oracleora92)
)
)
4、修改TNS
TG4MSQL =
(DESCRIPTION=
(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521))
(CONNECT_DATA=(SID=tg4msql))
(HS=)
)
5、创建DBLINK 说明建立的 用户名，密码要是 SQLSERVER 的用户名和密码
create PUBLIC DATABASE LINK oratoSql
CONNECT TO sa IDENTIFIED BY "lanwei"
USING 'TG4MSQL' ;
6、测试数据的是否正常检索。
