如何在sql server中将字符串转换为查询
如何添加包含 And 子句的字符串。但是当我们应用查询该字符串时，该字符串将被视为查询并满足所有和条件
我有一个查询，例如：-
Declare @WhereQuery varchar(max) SET @WhereQuery='class=''BCA'' and RollNo=10 AND ID IN (SELECT ID FROM StudentMaster WHERE MARKS > 50)' SELECT * into #TempTable1 from StudentMaster where @WhereQuery
我也不想使用execute 或exec 函数来运行此查询。 我将添加上面提到的查询字符串，但这将无法正常工作。 我在 where 子句之后添加的变量被视为字符串，但我希望该字符串被视为查询。请帮忙。我也不想使用execute 或exec 函数来运行此查询。
How to add string in which we have And clause. but when we apply that string which query this string will be treated as Query and fulfill all and conditions
I have a query like:-
Declare @WhereQuery varchar(max) SET @WhereQuery='class=''BCA'' and RollNo=10 AND ID IN (SELECT ID FROM StudentMaster WHERE MARKS > 50)' SELECT * into #TempTable1 from StudentMaster where @WhereQuery
I also don't want to use execute or exec function to run this query.
I am going to add string with query mention as above but this will not work properly.
The variable which I have added after where clause is treated as string but I want this string is treated as Query. Please help. I also don't want to use execute or exec function to run this query.
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（2）
下面的方法效果很好。但要格外小心，因为如果用户提供输入，它很容易受到 SQL 注入的影响。
The below approach works fine. but be extra careful as it is susceptible to sql injection if user provides the input.
如果出现以下情况，您必须使用 EXEC 或 sp_exeutesql您想要运行动态SQL。
如果您不想使用 EXEC，则编写非动态查询：
You have to use EXEC or sp_exeutesql if you want to run dynamic SQL.
If you don't want to use EXEC then write non-dynamic queries: