如何修复＆＃34;无法找到列dbo或用户定义的函数或聚合，或名称不明确＆＃34;

Question

我需要在SQL服务器中调用函数但是出错了！

 cannot find either column "dbo" or the user-defined function or
    aggregate "dbo.udf_Sum_ExtraHours", or the name is ambiguous.

我有昨天从堆栈中获得的功能，当我在Management studio中单独测试它时它的工作正常但是当我把它放在内联函数中并需要调用存储过程时它会抛出提到的错误，

我保存的功能是：

ALTER FUNCTION dbo.udf_Sum_ExtraHours
    (
    @strt date,
    @end date

    )
RETURNS  TABLE 
AS
    RETURN

    WITH cte
AS (
    SELECT ExtraHrs 
        ,CASE 
            WHEN left(ExtraHrs, 1) = '-'
                THEN - 1
            ELSE 1
            END AS multiply
        ,right(ExtraHrs, 8) AS timestring
        ,
        --get hours in seconds:
        DATEPART(HOUR, right(ExtraHrs, 8)) * 3600 AS h_in_s
        ,
        --get minutes in seconds:
        DATEPART(MINUTE, right(ExtraHrs, 8)) * 60 AS m_in_s
        ,
        --get seconds:
        DATEPART(SECOND, right(ExtraHrs, 8)) AS s
    FROM  vw_Rept_Attend  where convert(date,AtnDate) between @strt and @end 
    )
    ,CTE3
AS (
    SELECT *
        ,c.h_in_s + c.m_in_s + c.s AddExtra
    FROM cte c
    )
    ,cte4
AS (
    SELECT sum(AddExtra * multiply) mn
    FROM cte3
    )
    ,cte5
AS (
    SELECT mn / 3600 hh
        ,(mn % 3600) / 60 mi
        ,(mn % 3600.0) % 60 ss
    FROM cte4
    )
SELECT 
    cast(hh AS VARCHAR) + ':' + cast(mi AS VARCHAR) + ':' + cast(ss AS VARCHAR) as ExtraHrs
FROM cte5

现在我要调用此函数的存储过程是

     select   UserID,
dbo.udfTimeSpanFromSeconds(Sum(Left(workhrs,2) * 3600 + substring(Convert(varchar(8),workhrs), 4,2) * 60 + substring(Convert(varchar(8),workhrs), 7,2))) as WorkHrs ,

dbo.udf_Sum_ExtraHours('2015-10-12','2015-10-14'),// function which throw error

EmpName,EmpType,UserName, Role,convert(VARCHAR(10),
StartDate,105) as StartDate,convert(VARCHAR(10),EndDate,105) as EndDate
from    vw_Rept_Attend  where  convert(date,AtnDate) between '2015-10-12' and '2015-10-14' 
group by UserID,

EmpName,EmpType,UserName, Role,StartDate,EndDate
      Order by UserID

但是在SQL server management studio函数中，当我执行单独的函数而不使用存储过程时，给我准确的输出

在SQL管理工作室中看起来像：

我读了

Cannot find either column "dbo" or the user-defined function or aggregate "dbo.Splitfn", or the name is ambiguous

和Cannot find either column “dbo” or the user-defined function or aggregate “dbo.FN_Split”, or the name is ambiguous

还有更多，但无法解决我的问题，

请帮我摆脱这个，

谢谢

Answer 1

您的函数返回一个表，因此不能在select子句的列列表中使用。

我看到三种方法（可能还有更多;））：

1. 加入函数结果：

   select [...], extraTime, [...]
   from    vw_Rept_Attend 
   cross apply dbo.udf_Sum_ExtraHours('2015-10-12','2015-10-14') as ex(extraTime)
   [...]
   

2. 在列表中创建一个子选择：

   select [...], 
   (    
       select top 1 ExtraHrs from dbo.udf_Sum_ExtraHours('2015-10-12','2015-10-14')
   ) ExtraHrs, [...]
   from    vw_Rept_Attend 
   [...]
   

3. 重新定义函数以返回单个值：

   ALTER FUNCTION dbo.udf_Sum_ExtraHours
   (
   @strt date,
   @end date
   
   )
   RETURNS INT -- or VARCHAR or some other single value type
   /* method body returning single value */