在上下文中指定的非布尔类型的表达式，其中条件接近'，'

Question

当我在SQL Server上运行下面的查询时，它对单值或多值工作正常。但是当我尝试在SSRS数据集上执行相同的操作时，它将为多个值引发错误。

ERROR: SSRS: An expression of non boolean type specified in a context where a condition is expected near ','. Incorrect syntax near the keyword 'ELSE'.

它工作正常，单值。不知道是什么问题，或者有什么其他的方式可以写这个查询。

DECLARE @UserTeam VARCHAR(max) = 'Team1,Team2,Team3,Team4,Team5,Team6,''' 

-- Values can inculdes null. if user select blank and Team1,Team2 we need to pull data which is null, Team1, Team2 
IF Object_id('tempdb.dbo.#Team', 'U') IS NOT NULL 
    DROP TABLE #team; 

SELECT item AS Team 
INTO #team 
FROM dbo.FNSPLIT(@UserTeam, ',') 

IF @UserTeam = '' 
    BEGIN 
     SELECT U.username, 
      T.teamcode 
     FROM [User].vwuser u 
      LEFT JOIN[User].userteam UT 
        ON U.userid = UT.userid 
      LEFT JOIN [User].team AS T 
        ON T.teamid = Ut.teamid 
     WHERE T.teamcode IS NULL 
     ORDER BY U.username 
    END 
ELSE 
    BEGIN 
     SELECT U.username, 
      T.teamcode 
     FROM [User].vwuser u 
      LEFT JOIN [User].userteam UT 
        ON U.userid = UT.userid 
      LEFT JOIN [User].team AS T 
        ON T.teamid = Ut.teamid 
      JOIN #team tm 
       ON T.teamcode = tm.team 
     WHERE (U.username NOT LIKE '%System%') 
     ORDER BY U.username 
    END 

Answer 1

我想通了什么问题。这是因为UserTeam参数不接受多个选择。解决我添加下面的表达式。

=JOIN(Parameters!UserTeam.Value,",") 

数据集属性 - >参数 - > @UserTeam - >添加表达式。基本上它会用逗号分隔值和函数分隔dbo.fnSplit（@UserTeam，'，'）会转换成表格。

而且我已经改变以更好的方式查询，而不必IF条件

SELECT U.userName, T.teamCode 
FROM [User].vwUser u 
    left join [User].UserTeam UT ON U.userId = UT.userId 
    left join [User].Team AS T ON T.teamId = Ut.teamId 
WHERE   
    U.userName NOT LIKE '%System%' 
    AND ISNULL(T.teamCode,'') IN (SELECT ISNULL(item,'') FROM dbo.fnSplit(@UserTeam,',')) 
ORDER BY U.userName 

Answer 2

可以执行下句，测试功能fnSplit：

DECLARE @UserTeam VARCHAR（MAX）= 'TEAM1，的Team2，Team3，Team4，Team5，Team6，' ''

AS队SELECT项目FROM dbo.fnSplit（@UserTeam， ''）

如果上述功能是否正常工作，你会看到七行：

• TEAM1
• 的Team2
• Team3
• Team4
• Team5
• Team6
• “（单引号）