MYSQL与MSSQL如何实现数据互访交换？

MSSQL内部可以访问ODBC驱动程序

--连接mysql

安装MySQL的ODBC驱动MyODBC

1、为MySQL建立一个ODBC系统数据源，例如：选择数据库为test ,数据源名称为 myDSN

2、建立链接数据库

EXEC sp_addlinkedserver @server = 'MySQLTest', @srvproduct='MySQL', @provider = 'MSDASQL', @datasrc = 'myDSN'

GO

EXEC sp_addlinkedsrvlogin @rmtsrvname='MySqlTest',@useself='false',@locallogin='sa',@rmtuser='mysql的用户名',@rmtpassword='mysql的密码'

3、查询数据

SELECT * FROM OPENQUERY (MySQLTest ,'select * from 表' )

如果只是结果集中交换两列：

select name,id from 表名

如果更改表结构：

alter table 表名 modify column id int auto_increment after name

比如：

#建立测试表 t1

mysql>create table t1(id int auto_increment,name varchar(20),primary key(id))engine=innodb,default charset=utf8

Query OK, 0 rows affected (0.11 sec)

#插入3条数据

mysql>insert into t1(name) values ("aa"),("bb"),("cc")

Query OK, 3 rows affected (0.00 sec)

Records: 3 Duplicates: 0 Warnings: 0

mysql>select * from t1

+----+------+

| id | name |

+----+------+

| 1 | aa |

| 2 | bb |

| 3 | cc |

+----+------+

3 rows in set (0.00 sec)

#结果集中排列name到id前

mysql>select name,id from t1

+------+----+

| name | id |

+------+----+

| aa | 1 |

| bb | 2 |

| cc | 3 |

+------+----+

3 rows in set (0.00 sec)

#改变表结构，使name在id前

mysql>alter table t1 modify column id int auto_increment after name

Query OK, 3 rows affected (0.19 sec)

Records: 3 Duplicates: 0 Warnings: 0

mysql>select * from t1

+------+----+

| name | id |

+------+----+

| aa | 1 |

| bb | 2 |

| cc | 3 |

+------+----+

3 rows in set (0.00 sec)

mysql>desc t1

+-------+-------------+------+-----+---------+----------------+

| Field | Type | Null | Key | Default | Extra |

+-------+-------------+------+-----+---------+----------------+

| name | varchar(20) | YES | | NULL | |

| id | int(11) | NO | PRI | NULL | auto_increment |

+-------+-------------+------+-----+---------+----------------+

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