【达梦数据库】搭建 DM-＞mysql dblink

DM->mysql dblink

1安装mysql odbc

 rpm -ivh mysql-connector-odbc-5.3.14-1.el7.x86_64.rpm

mysqlodbc安装截图

2mysql创建远程用户与远程数据库

mysql> show databases;
+-------------------------+
| Database                |
+-------------------------+
| information_schema      |
| mysql                   |
| #mysql50#mysql-bin-obar |
| performance_schema      |
| sys                     |
+-------------------------+
5 rows in set (0.00 sec)

mysql> create database test;
Query OK, 1 row affected (0.00 sec)
mysql> use test
Database changed
mysql> create table test ( id int ,name varchar(20));
Query OK, 0 rows affected (0.03 sec)
mysql> insert into test (id,name) values (1,'nihao');
Query OK, 1 row affected (0.00 sec)
mysql> grant all privileges on test.* to 'root'@'%' IDENTIFIED BY 'njnu123456';
Query OK, 0 rows affected, 1 warning (0.00 sec)
连接测试
[root@mysqlre1 ~]# mysql -ukingle -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 747202
Server version: 5.7.26-log Source distribution

Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| test               |
+--------------------+
2 rows in set (0.00 sec)

mysql>

3 配置unixodbc

msyql5.7.33

vim odbc.ini
[mysql]
Description     = ODBC for MySQL
Driver          = /usr/lib64/libmyodbc8w.so
Server          = 192.168.0.187
Port            = 3306      ----mysql 端口
User            = root   ----mysql连接用户
Password        = 123456 ---mysql 连接密码
Database        = test  ---mysql连接数据库
[mysql]
Description     = ODBC for MySQL
Driver          = /usr/lib64/libmyodbc5w.so
Server          = 192.168.142.243
Port            = 3306     
User            = root  
Password        = njnu123456 
Database        = test  
[mysqlodbc]
Driver = MySQL ODBC 5.3 Unicode Driver 
SERVER = 192.168.142.243
PORT = 3306
USER = root      
PASSWORD = 此处是密码    
CHARSET= gbk      
DATABASE=  test 
OPTION = 3
TRACE = OFF
vim /etc/odbcinst.ini
[MySQL ODBC 5.3 Unicode Driver]
Driver=/usr/lib64/libmyodbc5w.so
UsageCount=1

创建语句

create or replace public LINK link_mysqlodbc connect 'ODBC' with "root" identified by "此处是密码" using 'mysqlodbc';
  select * from "test"."test"@LINK_MYSQLODBC;

insert into "test"."test"@LINK_MYSQLODBC  VALUES(2,'您好');