Question

我正在尝试使用计算列和GROUP BY执行以下查询，但由于某种原因它无法正常工作。

SELECT Alquileres.Matricula, SUM(CostoTotal) AS TotalRecaudado, 
       Vehiculos.Marca, Vehiculos.Modelo 
FROM Alquileres INNER JOIN Vehiculos ON Alquileres.Matricula = Vehiculos.Matricula 
GROUP BY Alquileres.Matricula

有人可以帮忙吗？

Answer 1

试

SELECT Vehiculos.Marca, Vehiculos.Modelo, Alquileres.Matricula, SUM(CostoTotal) AS TotalRecaudado
FROM Alquileres 
INNER JOIN Vehiculos 
ON Alquileres.Matricula = Vehiculos.Matricula 
GROUP BY Alquileres.Matricula,Vehiculos.Marca, Vehiculos.Modelo

按查询选择分组中的所有字段应该是一个字段或一个分组字段。

Answer 2

您的查询应如下所示

SELECT 
    Alquileres.Matricula, 
    SUM(CostoTotal) AS TotalRecaudado, 
    Vehiculos.Marca, 
    Vehiculos.Modelo 
FROM 
    Alquileres INNER JOIN 
    Vehiculos 
    ON Alquileres.Matricula = Vehiculos.Matricula 
    GROUP BY 
    Alquileres.Matricula,
    Vehiculos.Marca, -- add this line
    Vehiculos.Modelo -- and this line to group by

使用group by的SQL Server查询引发错误

2 个答案: