Question

我正在运行SSRS报告，我的数据源是FetchXML。

不幸的是，使用FetchXML，您无法运行存储过程或函数。

可以通过几种不同的方式提出这个问题：

如何将函数的值传递给FetchXML？
可以只创建一个表格或视图 tbl_finduserGUID 来返回函数 dbo.fn_finduserguid（）的值，而不是执行上述操作。
或者也许有更好的方法通过SSRS / FetchXML获取当前用户的数据库角色？

这是我的查询，将转换为fetchxml：

SELECT systemuser.fullname AS 'fullname',
       usersettings.calendartype AS 'calendartype', 
       usersettings.uilanguageid AS 'uilanguageid' 
FROM   filteredsystemuser AS systemuser 
       INNER JOIN filteredusersettings AS usersettings 
               ON systemuser.systemuserid = usersettings.systemuserid 
WHERE  systemuser.systemuserid = dbo.Fn_finduserguid()

这里是 dbo.fn_finduserguid（）

SET ansi_nulls ON 

go 

SET quoted_identifier ON 

go 

ALTER FUNCTION [dbo].[Fn_finduserguid] () 
returns UNIQUEIDENTIFIER 
AS 
  BEGIN 
      DECLARE @userGuid UNIQUEIDENTIFIER 

      --- test whether the query is runing by priviledged user with user role of CRMReaderRole 
      --- if it is dbo, we trust it as well.  
      --- There is an issue in SQL. If the user is a dbo, if it not member of any role 
      IF ( Is_member('CRMReaderRole') | Is_member('db_owner') ) = 1 
        BEGIN 
            SELECT @userGuid = Cast(Context_info() AS UNIQUEIDENTIFIER) 
        END 

      IF @userGuid IS NULL 
        BEGIN 
            SELECT @userGuid = s.systemuserid 
            FROM   systemuserbase s 
            WHERE  s.domainname = Suser_sname() 
        END 

      RETURN @userGuid 
  END

Answer 1

创建一个选择函数作为列的视图应该没有问题。

Create view vFindUserGuid
As
    Select dbo.Fn_finduserguid() as userguid

您的查询可以像普通表一样使用视图

SELECT systemuser.fullname AS 'fullname',
   usersettings.calendartype AS 'calendartype', 
   usersettings.uilanguageid AS 'uilanguageid' 
FROM   filteredsystemuser AS systemuser 
   INNER JOIN filteredusersettings AS usersettings 
           ON systemuser.systemuserid = usersettings.systemuserid 
WHERE  systemuser.systemuserid = (select userguid from vfinduserguid)

从中选择表/视图是否可以返回标量值？

1 个答案: