ORACLE 创建数据链

废话不多说直接上SQL语句：

create database link
linkname

　　 connect to
dbuser identified by
dbpassword

　　 using '(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST =
192.168.122.110)(PORT =
1521))

)

(CONNECT_DATA
=

(SERVICE_NAME =
rac)

)

)';

其中 linkname 是数据链名称 ,dbuser 登陆用户名 ,dbpassword 登陆密码 ,HOST= 数据库所在ip,PORT =端口（默认是1521）,SERVICE_NAME=数据库的sid（一般默认是orcl）

获取数据库的sid：select instance_name
from v$instance

例子：
create database link interfaceDb_8_11
　　 connect to interfaceDb identified by 000000
　　 using '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.8.11)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = orcl)
)
)';