1、启用Ad Hoc Distributed Queries
在使用openrowset/opendatasource前搜先要启用Ad Hoc Distributed Queries服务，因为这个服务不安全所以SqlServer默认是关闭的
启用Ad Hoc Distributed Queries的方法
SQL Server 阻止了对组件 "Ad Hoc Distributed Queries" 的 STATEMENT"OpenRowset/OpenDatasource"
的访问，因为此组件已作为此服务器安全配置的一部分而被关闭。系统管理员可以通过使用
sp_configure 启用 "Ad Hoc Distributed Queries".有关启用 "Ad Hoc Distributed Queries" 的详细
信息，请参阅 SQL Server 联机丛书中的 "外围应用配置器".
启用Ad Hoc Distributed Queries的方法，执行下面的查询语句就可以了：
exec sp_configure "show advanced options",1
reconfigure
exec sp_configure "Ad Hoc Distributed Queries",1
reconfigure
使用完毕后，记得一定要要关闭它，因为这是一个安全隐患，切记执行下面的SQL语句
exec sp_configure "Ad Hoc Distributed Queries",0
reconfigure
exec sp_configure "show advanced options",0
reconfigure
2、使用示例
--创建链接服务器
exec sp_addlinkedserver "ITSV ", " ", "SQLOLEDB ", "远程服务器名或ip地址 "
exec sp_addlinkedsrvlogin "ITSV ", "false ",null, "用户名 ", "密码 "
--查询示例
select * from ITSV.数据库名。dbo.表名
--导入示例
select * into 表 from ITSV.数据库名。dbo.表名
--以后不再使用时删除链接服务器
exec sp_dropserver "ITSV ", "droplogins "
--连接远程/局域网数据(openrowset/openquery/opendatasource)
--1、openrowset
--查询示例
select * from openrowset( "SQLOLEDB ", "sql服务器名 "; "用户名 "; "密码 ",数据库名。dbo.表名)
--生成本地表
select * into 表 from openrowset( "SQLOLEDB ", "sql服务器名 "; "用户名 "; "密码 ",数据库名。dbo.表名)
--把本地表导入远程表
insert openrowset( "SQLOLEDB ", "sql服务器名 "; "用户名 "; "密码 ",数据库名。dbo.表名)
select *from 本地表
--更新本地表
update b
set b.列A=a.列A
from openrowset( "SQLOLEDB ", "sql服务器名 "; "用户名 "; "密码 ",数据库名。dbo.表名)as a inner join 本地表 b
on a.column1=b.column1
--openquery用法需要创建一个连接
--首先创建一个连接创建链接服务器
exec sp_addlinkedserver "ITSV ", " ", "SQLOLEDB ", "远程服务器名或ip地址 "
--查询
select *
FROM openquery(ITSV, "SELECT * FROM 数据库。dbo.表名 ")
--把本地表导入远程表
insert openquery(ITSV, "SELECT * FROM 数据库。dbo.表名 ")
select * from 本地表
--更新本地表
update b
set b.列B=a.列B
FROM openquery(ITSV, "SELECT * FROM 数据库。dbo.表名 ") as a
inner join 本地表 b on a.列A=b.列A
--3、opendatasource/openrowset
SELECT *
FROM opendatasource( "SQLOLEDB ", "Data Source=ip/ServerName;User ID=登陆名;Password=密码 " )。test.dbo.roy_ta
--把本地表导入远程表
insert opendatasource( "SQLOLEDB ", "Data Source=ip/ServerName;User ID=登陆名;Password=密码 ")。数据库。dbo.表名
select * from 本地表
3、自己写的例子
--openrowset使用OLEDB的一些例子
select * from openrowset("SQLOLEDB","Server=(local);PWD=***;UID=sa;","select * from TB.dbo.school") as t
select * from openrowset("SQLOLEDB","Server=(local);PWD=***;UID=sa;",TB.dbo.school) as t
select * from openrowset("SQLOLEDB","Server=(local);Trusted_Connection=yes;",TB.dbo.school) as t
select * from openrowset("SQLOLEDB","(local)";"sa";"***","select * from TB.dbo.school") as t
select * from openrowset("SQLOLEDB","(local)";"sa";"***",TB.dbo.school) as t
select * from openrowset("SQLOLEDB","(local)";"sa";"***","select school.id as id1,people.id as id2 from TB.dbo.school inner join TB.dbo.people on school.id=people.id") as t
--openrowset使用SQLNCLI的一些例子(SQLNCLI在SqlServer2005以上才能使用)
select * from openrowset("SQLNCLI","(local)";"sa";"***","select * from TB.dbo.school") as t
select * from openrowset("SQLNCLI","Server=(local);Trusted_Connection=yes;","select * from TB.dbo.school") as t
select * from openrowset("SQLNCLI","Server=(local);UID=sa;PWD=***;","select * from TB.dbo.school") as t
select * from openrowset("SQLNCLI","Server=(local);UID=sa;PWD=***;",TB.dbo.school) as t
select * from openrowset("SQLNCLI","Server=(local);UID=sa;PWD=***;DataBase=TB","select * from dbo.school") as t
--openrowset其他使用
insert openrowset("SQLNCLI","Server=(local);Trusted_Connection=yes;","select name from TB.dbo.school where id=1") values("ghjkl")/*要不要where都一样，插入一行*/
update openrowset("SQLNCLI","Server=(local);Trusted_Connection=yes;","select name from TB.dbo.school where id=1") set name="kkkkkk"
delete from openrowset("SQLNCLI","Server=(local);Trusted_Connection=yes;","select name from TB.dbo.school where id=1")