一、在oracle的服务器上安装GBase的ODBC驱动；
二、执行odbcinst –j
[oracle@t3 admin]$ odbcinst -j
unixODBC 2.2.14
DRIVERS............: /etc/odbcinst.ini
SYSTEM DATA SOURCES: /etc/odbc.ini
FILE DATA SOURCES..: /etc/ODBCDataSources
USER DATA SOURCES..: /home/oracle/.odbc.ini
SQLULEN Size.......: 8
SQLLEN Size........: 8
SQLSETPOSIROW Size.: 8
[oracle@t3 admin]$ vim /etc/odbc.ini
[oracle@t3 admin]$
[test]
Driver = /usr/lib64/libgsodbc8.so
DATABASE = test
DESCRIPTION = GBase 8a ODBC 8.3.1.5 Sample
PORT = 5258
SERVER = 192.168.137.5
UID = gbase
PWD = *********
CHARSET = utf8
TRACEFILE = /home/gbase/odbc.trc
TRACE = OFF
通过isql测试odbc配置情况
[oracle@t3 admin]$ isql test
+---------------------------------------+
| Connected! |
| |
| sql-statement |
| help [tablename] |
| quit |
| |
+---------------------------------------+
SQL> select count(*) from test;
+---------------------+
| count(*) |
+---------------------+
| 2097152 |
+---------------------+
SQLRowCount returns 1
1 rows fetched
SQL> quit
[oracle@t3 admin]$
三、配置oracle 透明网关
总共要配置三个文件
1、 $ORACLE_HOME/hs/admin/xxxx.ora
2、 $ORACLE_HOME/network/admin/listener.ora
2、 $ORACLE_HOME/network/admin/tnsnames.ora
这三个文件中的
$ORACLE_HOME/hs/admin/xxxx.ora中的HS_FDS_CONNECT_INFO = test
listener.ora 中的SID_NAME = test
tnsnames.ora中的SID = test
要一致。
其中$ORACLE_HOME/hs/admin/xxxx.ora的文件名命名规则：
init+HS_FDS_CONNECT_INFO.ora
例如我们在HS_FDS_CONNECT_INFO=test
inittest.ora
[oracle@t3 admin]$ cd $ORACLE_HOME/hs/admin
[oracle@t3 admin]$ ls
extproc.ora initdg4odbc.ora listener.ora.sample tnsnames.ora.sample
[oracle@t3 admin]$ vim inittest.ora
# This is a sample agent init file that contains the HS parameters that are
# needed for the Database Gateway for ODBC
#
# HS init parameters
#
HS_FDS_CONNECT_INFO = test
HS_FDS_TRACE_LEVEL = 0
HS_FDS_SHAREABLE_NAME = /usr/lib64/libgsodbc8.so
#
# ODBC specific environment variables
#
set ODBCINI=/etc/odbc.ini
#
# Environment variables required for the non-Oracle system
#
set LD_LIBRARY_PATH=/usr/lib64
HS_LANGUAGE=AMERICAN_AMERICA.UTF8
HS_NLS_NCHAR=UCS2
===========================
配置$ORACLE_HOME/network/admin/listener.ora
在原有文件总增加蓝色部分
# listener.ora Network Configuration File: /disk2/app/DB/oracle/network/admin/listener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = t3)(PORT = 1521))
)
)
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = test)
(ORACLE_HOME = /disk2/app/DB/oracle)
(PROGRAM = dg4odbc)
(ENVS=LD_LIBRARY_PATH=/disk2/app/DB/oracle/lib:/usr/lib64)
)
)
ADR_BASE_LISTENER = /disk2/app/DB/
================================================
配置$ORACLE_HOME/network/admin/tnsnames.ora
在原有文件中增加蓝色部分
# tnsnames.ora Network Configuration File: /disk2/app/DB/oracle/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = t3)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
testdblink =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA =
(SID = test)
)
(HS = OK)
)
这里 testdblink创建dblink时使用。
四、创建oracle11g到GBase8a 的dblink
oracle@ynhdys2/oracle$sqlplus /nolog
SQL*Plus: Release 11.2.0.1.0 Production on Thu Jul 7 16:04:23 2011
Copyright (c) 1982, 2009, Oracle. All rights reserved.
SQL> connect / as sysdba;
Connected.
SQL> create user gbase identified by gbase;
User created.
SQL> grant connect to gbase;
Grant succeeded.
SQL> grant dba to gbase;
Grant succeeded.
SQL> connect gbase/gbase;
Connected.
创建dblink
create database link gt1 connect to "gbase" identified by "*********" using 'testdblink'
SQL> select count(*) from test@gt1;
COUNT(*)
----------
2097152
SQL>