DM-DM 创建DBlink

环境:两台服务器均为centos 7,安装相同版本的达梦数据库
源端:192.168.43.110 端口:5236 实例名:DMSERVER
目的端:192.168.43.111 端口:5238 实例名:DMDB

1.修改dm.ini中的MAL_INI=1,INSTANCE_NAME

---源端:
INSTANCE_NAME                   = DMSERVER  
MAL_INI                         = 1 
---目的端:
INSTANCE_NAME                   = DMDB  
MAL_INI                         = 1 

2.在两台服务器上创建dmmal.ini文件,两个文件需要相同
注意mal_port不能与数据库的端口相同,mal_port端口是用来两个服务器通讯用的

[mal_inst1]
  mal_inst_name  = DMSERVER     
  mal_host       = 192.168.43.110   
  mal_port       = 5239
[mal_inst2]
  mal_inst_name  = DMDB            
  mal_host       = 192.168.43.111  
  mal_port       = 5239

创建完成后,重启数据库服务
3.在192.168.43.111创建dblink
create link “模式”.“DBlink名称” connect ‘连接源类型(DAMENG/ORACLE/ODBC)’ with “用户名” identified by “密码” using ‘IP/端口号’

SQL> create link "SYSDBA"."q1" connect 'DAMENG' with "SYSDBA" identified by "Dameng123" using '192.168.43.110/5239';
executed successfully
used time: 5.728(ms). Execute id is 400.

4.在11上查看110上的表:

SQL> select * from T1@a2;
行号     A
---------- -----------
1          1
2          2
3          3
4          4

管理DBLink
1.查看dblink信息:

SQL>  select * from dba_db_links;

LINEID     OWNER  DB_LINK USERNAME HOST                CREATED
---------- ------ ------- -------- ------------------- --------------------------
1          SYSDBA a110    SYSDBA   192.168.43.110/5239 2021-09-23 15:35:00.537889
2          SYSDBA a2      SYSDBA   192.168.43.110/5239 2021-09-23 15:37:30.341843

2.删除dblink:

drop link "SYSDBA"."a2";

更多相关问题请浏览:
达梦云适配技术社区:https://eco.dameng.com/

上一篇:2021-10-13


下一篇:Oracle DBlink