我已经使用 sp_addlinkedserver 来访问远程机器数据库,现在我正在像这样的数据库明确地编写查询,
I have used sp_addlinkedserver to access the remote machines db now i am writing queries explicitly on database like,
select * from [server\instance].database.owner.tablename
select * from [server\instance].database.owner.tablename
现在有了这个,
如果这些值是使用查询找到的,我们是否需要使用 EXEC() 来执行它,或者我们仍然可以使用漂亮的查询来实现它?
If these values are found using queries do we need to use EXEC() to execute this or we can still achieve it using nice queries ?
谢谢大家
您提到的不错"格式只是一个由 4 部分组成的对象引用.
The "nice" format you mention is simply a 4 part object reference.
select * from [server\instance].database.owner.tablename
3 部分
select * from database.owner.tablename
2 部分
select * from owner.tablename
如果您想动态更改任何服务器、数据库或架构值,那么您有一个选择:
If you want to dynamically change any of the server, db or schema values then you have one option:
EXEC (@sqlstring)
但是,如果您只远程访问存储过程...
However, if you only access stored procs remotely...
DECLARE @RemoteSP varchar(500)
SET @RemoteSP = '[server\instance].database2.schema.proc2'
EXEC @RemoteSP @p1, @p2, @p3 OUTPUT
SET @RemoteSP = '[server\instance].database1.schema.proc1'
EXEC @RemoteSP @p4, @p5, @p6 OUTPUT
但是,更改对象引用的组件毫无意义:如果您知道要查询一个表,那么只需在该数据库中调用该表...
However, changing the components of the object reference makes no sense arguably: if you know you're going to query a table then just call that table in that database...
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