tsql - How to put an SSRS built in variable into SQL variable

Question

Building a report in SSRS 2008. I need to capture the built-in User!UserId variable so I can use it in my dataset query. It is part of my report security. I have tried a couple ways, but niether worked:

DECLARE @currentUser varchar(30) =User!UserID 

and inline:

SELECT @retVal = COUNT(*)
FROM MySecurityTable
WHERE ExpirationTime > GETDATE() AND UserName =User!UserId

Answer 1

创建一个隐藏报表参数@UserID 并将其默认值设置为=User!UserID。

在数据集中使用参数 @UserID。

SELECT @retVal = COUNT(*)
FROM MySecurityTable
WHERE ExpirationTime > GETDATE() AND UserName = @UserID