为什么我在查询中收到指定表达式的错误？

Question

我不断收到以下错误：

Your query does not include the specified expression '[Employees}.{Last Name] & "," & [First Name]' as part of an aggregate function.

这是 SQL 视图：

SELECT [Employees].[Last Name] & ", " & [First Name] AS EmployeeName,
       Sum(IIf([Vacation Calendar].[TypeID]=1,[Vacation Calendar].[Time],0)) AS SumOfSickTime
FROM   Employees 
INNER 
JOIN   [Vacation Calendar] 
       ON Employees.ID = [Vacation Calendar].EmployeeID
WHERE  (((Employees.[Active Employee])=True))
ORDER 
BY     [Employees].[Last Name] & ", " & [First Name];

Answer 1

您正在使用 SUM，因此需要在查询末尾包含 GROUP BY 函数。

类似 GROUP BY [Employees].[Last Name] & ", " & [First Name] 使用 ORDER BY 无法解决此问题

为什么我在查询中收到指定表达式的错误？

Why am I getting an error for specified expression in a Query?

ms-access-2013