参考文章：How to Configure DG4MSQL (Oracle Database Gateway for MS SQL Server) 64bit Unix OS (Linux, Solaris, AIX,HP-UX) post install (文档 ID 562509.1)
ORA-28500 SQLSTATE 8001 When I Select Via DG4MSQL (文档 ID 868672.1)
一、实施步骤
1、安装gateway
p13390677_112040_Linux-x86-64_5of7.zip
ORAGTW_HOME
/u01/app/oracle/gateways
填写正确的sqlserver IP、端口、数据库名
2、配置透明网关(oracle用户执行)
注：使用默认的dg4msql 参数文件即可，不需更改实例，否则可能会出现ORA-28545报错
[oracle@hs01dba01 admin]$ pwd/u01/app/oracle/gateways/dg4msql/admin
[oracle@hs01dba01 admin]$
[oracle@hs01dba01 admin]$ cat initdg4msql.ora# This is a customized agent init file that contains the HS parameters
# that are needed for the Database Gateway for Microsoft SQL Server
#
# HS init parameters
#
HS_FDS_CONNECT_INFO=10.11.4.52:1433//anyimage
# alternate connect format is hostname/serverinstance/databasename
HS_FDS_TRACE_LEVEL=OFF
HS_FDS_RECOVERY_ACCOUNT=RECOVER
HS_FDS_RECOVERY_PWD=RECOVER
#HS_FDS_RECOVERY_PWD=R3cOVER!
HS_FDS_TRANSACTION_LOG=HS_TRANSACTION_LOG
HS_FDS_TRANSACTION_MODEL=COMMIT_CONFIRM
HS_FDS_DELAYED_OPEN=FALSE
HS_FDS_WORKAROUNDS=16
HS_NLS_NCHAR = UCS2
HS_LANGUAGE=AMERICAN_AMERICA.ZHS16GBK
[oracle@hs01dba01 admin]$
3、配置透明网关监听(oracle用户执行)
注：透明网关配置文件、透明网关监听配置文件都需在透明网关目录下配置
[oracle@hs01dba01 admin]$ pwd/u01/app/oracle/gateways/network/admin
[oracle@hs01dba01 admin]$ cat listener.oraSID_LIST_LISTENER_SQL =
(SID_LIST =
(SID_DESC =
(PROGRAM = dg4msql)
(SID_NAME = dg4msql)
(ORACLE_HOME = /u01/app/oracle/gateways)
)
)
LISTENER_SQL =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.10.10)(PORT = 1522))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
)
ADR_BASE_LISTENER = /u01/app/oracle/gateways
[oracle@hs01dba01 admin]$
4、配置tnsnames.ora(oracle用户执行)
$ cd $ORACLE_HOME/network/admin/
$ cat tnsnames.ora添加以下内容：
MSSQLSERVER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST =172.16.10.10)(PORT = 1522))
(CONNECT_DATA=(SID=dg4msql))
(HS=OK)
)
5、测试
注：访问sqlserver的dblink中，用户名和密码必须全部小写，并且使用双引号
create public database link sqltest connect to "mdc" identified by "mdc" using 'mssqlserver';
select 1 from dual@sqltest;
附录：错误信息及处理方法
1、ORA-28500
错误原因以及处理方法：
Dblink中用户名、密码必须小写并且使用双引号
initgg4msql.ora文件中的HS_FDS_CONNECT_INFO配置信息必须正确,必须使用sqlserver的数据库名，而非实例名。
2、ORA-28545
错误原因以及处理方法：使用了错误的透明网关配置文件，透明网关配置文件和SID不一致
3、ORA-28513