问题描述
如何在sql openquery中使用参数，例如:
How can I use a parameter inside sql openquery, such as:
SELECT * FROM OPENQUERY([NameOfLinkedSERVER], 'SELECT * FROM TABLENAME
where field1=@someParameter') T1 INNER JOIN MYSQLSERVER.DATABASE.DBO.TABLENAME
T2 ON T1.PK = T2.PK
推荐答案
来自 OPENQUERY 文档指出:
有关解决方法，请参见此文章.
See this article for a workaround.
更新:
根据建议，我将包括以下文章中的建议.
As suggested, I'm including the recommendations from the article below.
传递基本值
当基本的Transact-SQL语句已知但您必须传递一个或多个特定值时，请使用类似于以下示例的代码:
When the basic Transact-SQL statement is known, but you have to pass in one or more specific values, use code that is similar to the following sample:
DECLARE @TSQL varchar(8000), @VAR char(2)
SELECT @VAR = 'CA'
SELECT @TSQL = 'SELECT * FROM OPENQUERY(MyLinkedServer,''SELECT * FROM pubs.dbo.authors WHERE state = ''''' + @VAR + ''''''')'
EXEC (@TSQL)
传递整个查询
当您必须传递整个Transact-SQL查询或链接服务器的名称(或两者都传递)时，请使用类似于以下示例的代码:
When you have to pass in the whole Transact-SQL query or the name of the linked server (or both), use code that is similar to the following sample:
DECLARE @OPENQUERY nvarchar(4000), @TSQL nvarchar(4000), @LinkedServer nvarchar(4000)
SET @LinkedServer = 'MyLinkedServer'
SET @OPENQUERY = 'SELECT * FROM OPENQUERY('+ @LinkedServer + ','''
SET @TSQL = 'SELECT au_lname, au_id FROM pubs..authors'')'
EXEC (@OPENQUERY+@TSQL)
使用Sp_executesql存储过程
为避免多层引号，请使用类似于以下示例的代码:
To avoid the multi-layered quotes, use code that is similar to the following sample:
DECLARE @VAR char(2)
SELECT @VAR = 'CA'
EXEC MyLinkedServer.master.dbo.sp_executesql
N'SELECT * FROM pubs.dbo.authors WHERE state = @state',
N'@state char(2)',
@VAR
这篇关于包括OPENQUERY中的参数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！