第一步:需要去下载一个透明网管,相当于一个中间件(我们用的Oracle 11g,可能不同的数据库版本要安装不同的透明网管)
需要的朋友请到我的百度云盘上下载
链接:https://pan.baidu.com/s/1W6rEww1_NxxsMXYi0BOKPQ
提取码:sac2
第二步:安装透明网关
1、解压安装包后,点击setup.exe安装
2、下一步(注:貌似一定要和Oracle数据库安装目录一致,第一次安装的时候,就和Oracle安装在不同地方了,最终百度很久发现,要和Oracle安装同一个位置)
3、选择组建,选择SQL Server
4、填写SQL SERVER的主机名和数据库名称
5、开始安装
6、安装完成后就退出,然后开始配置监听,下面是重点!!!!
第三步:透明网关配置
配置说明:
本地Oracle安装目录:D:\Oracle\product\11.2.0\dbhome_1
本地DBLink安装目录:D:\Oracle\product\11.2.0\dbhome_1
SQL Server:账号:sa;密码:password;IP地址:127.0.0.1
1、来到:D:\Oracle\product\11.2.0\dbhome_1\dg4msql\admin;打开initdg4msql.ora
1 这个目录下可以看到以下initdg4msql.ora文件,上面在安装透明网关的时候有配置的要链接SQL SERVER数据的地址和数据库名称,在这里都可以体现:
配置文件:initdg4msql.ora
1 # This isa customized agent init file that contains the HS parameters2 # that are needed for the Database Gateway forMicrosoft SQL Server3
4 #5 # HS init parameters6 #7 HS_FDS_CONNECT_INFO=[127.0.0.1]:1433//DEMO 注:连接其他的SQL Server可修改此处
8 HS_FDS_TRACE_LEVEL=OFF9 HS_FDS_RECOVERY_ACCOUNT=RECOVER10 HS_FDS_RECOVERY_PWD=RECOVER
检查一下HS_FDS_CONNECT_INFO是否是我们想要链接的地址,格式为:目标数据库的IP地址:端口//数据库名。SQL SERVER的默认端口是1433。
配置文件:listener.ora.sample(localhost是监听的IP地址,这里我们连的是本地,127.0.0.1也是可以的)
1 # This isa sample listener.ora that contains the NET8 parameters that are2 # needed to connect to an HS Agent3
4 LISTENER =
5 (ADDRESS_LIST=
6 (ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521))7 )8
9 SID_LIST_LISTENER=
10 (SID_LIST=
11 (SID_DESC=
12 (SID_NAME=dg4msql)13 (ORACLE_HOME=D:\Oracle\product\11.2.0\dbhome_1)14 (PROGRAM=dg4msql)15 )16 )17
18 #CONNECT_TIMEOUT_LISTENER = 0
配置文件:tnsnames.ora.sample
1 # This isa sample tnsnames.ora that contains the NET8 parameters that are2 # needed to connect to an HS Agent3
4 dg4msql =
5 (DESCRIPTION=
6 (ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521))7 (CONNECT_DATA=(SID=dg4msql))8 (HS=OK)9 )
2、配置透明网关的监听,来到:D:\Oracle\product\11.2.0\dbhome_1\NETWORK\ADMIN(开始配置这3个文件)
配置文件:listener.ora
1 # This isa sample listener.ora that contains the NET8 parameters that are2 # needed to connect to an HS Agent3 SID_LIST_LISTENER =
4 (SID_LIST =
5 (SID_DESC =
6 (SID_NAME =CLRExtProc)7 (ORACLE_HOME = D:\Oracle\product\11.2.0\dbhome_1)8 (PROGRAM =extproc)9 (ENVS = "EXTPROC_DLLS=ONLY:D:\Oracle\product\11.2.0\dbhome_1\bin\oraclr11.dll")10 )11 (SID_DESC=
12 (SID_NAME=dg4msql)13 (ORACLE_HOME=D:\Oracle\product\11.2.0\dbhome_1)14 (PROGRAM=dg4msql)15 )16 )17
18 LISTENER =
19 (DESCRIPTION_LIST =
20 (DESCRIPTION =
21 (ADDRESS = (PROTOCOL = IPC)(KEY =EXTPROC1521))22 (ADDRESS = (PROTOCOL = TCP)(HOST = YRDLG5GS4G3ODYI)(PORT = 1521))23 (ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521))24 )25 )26
27 ADR_BASE_LISTENER =D:\Oracle28
29 #CONNECT_TIMEOUT_LISTENER = 0
1 这里需要注意的主要是一下几点:2 PROGRAM为dg4msql:因为实例的配置文件在dg4msql目录下,就是上面的initdg4msql.ora文件所在的目录3 SID_NAME为dg4msql:这个sid就是上面的文件名中的sid,initdg4msql.ora的sid为dg4msql4 ORACLE_HOME就是我们透明网关的安装目录5 ORACLE的监听端口是1521,我的oracle和透明网关是安装在同一台机器上的,所以透明网关的监听端口设置为1522。6 一个initSID.ora文件就对应一个SID_DESC,可以根据想要链接的数据库来配置。
配置文件:sqlnet.ora
1 # sqlnet.ora Network Configuration File: D:\Oracle\product\11.2.0\dbhome_1\network\admin\sqlnet.ora2 # Generated by Oracle configuration tools.3
4 # This file is actually generated by netca. But ifcustomers choose to5 # install "Software Only", thisfile wont exist and without the native6 # authentication, they will not be able to connect to the database on NT.7
8 SQLNET.AUTHENTICATION_SERVICES=(NONE)9
10 NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
配置文件:tnsnames.ora
1 # This isa sample tnsnames.ora that contains the NET8 parameters that are2 # needed to connect to an HS Agent3 ORCL =
4 (DESCRIPTION =
5 (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))6 (CONNECT_DATA =
7 (SERVER =DEDICATED)8 (SERVICE_NAME =orcl)9 )10 )11
12 dg4msql =
13 (DESCRIPTION=
14 (ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521))15 (CONNECT_DATA=(SID=dg4msql))16 (HS=OK)17 )
配置完之后,一定不要忘记重启监听!!!!!!一定不要忘记重启监听!!!!!!一定不要忘记重启监听!!!!!!
1 命令:lsnrctl reload
查看监听状态:
第四步:Oracle配置DBLink
1、先查看哪些用户可以使用DBLink,没有则创建权限
1 SELECT * FROM user_sys_privs where privilege like upper('%DATABASE LINK%')
赋权限配置命令
1 如:grant create publicdatabase link to system ;2 格式:grant create public database link to 用户名 ;
2、建立DBLink(用户要一定要权限才可以继续往下执行哦!没有的往上看,给用户配置权限)
1 查询dblink:2 select * fromdba_db_links;3
4 删除dblink:5 DROP DATABASE LINK [name];
1 create database link DBTEST12 connect to SA identified by "password"
3 using 'dg4msql';4
5
6
7 格式:8 create database link DBLink名称9 connect to SQL Server账户 identified by "SQL Server密码"
10 using 'SID';
搞定!!!!
下面这个报错信息,QQ群问一个遍,很少人知道DBLink这玩意,百度上资料也很少,捣鼓一下午,终于搞定了
出现这个问题是因为这6个文件导致的!!!!!!
捣鼓一下午,问题找到是因为这6个文件配置出问题了,这次就不再叙述了,修改那个配置文件了,配置文件因人而异,剩下的自己百度去查吧~~~~好了,捣鼓一天了,洗洗睡了,拜~~
整理的配置文档:
链接:https://pan.baidu.com/s/1Wdlo7j1NVmbmrvEwYNk1qw
提取码:6esm
原文出处:https://www.cnblogs.com/chenyanbin/p/11291752.html