查询访问数据库时出错

Question

我想弄清楚这个简单查询有什么问题。我想要总结 几列并按id主键对其进行分组，然后我想使用降序排序的'TOP 1'来提取最大数量。当我添加行ORDER BY sumofTotal DESC时，我从visual studio服务器资源管理器中收到此错误：

SELECT        TOP 1 ID, SUM(K + L + M + N + AD + AR) AS sumofTotal
FROM            Calculator
GROUP BY ID
ORDER BY sumofTotal DESC

Answer 1

SumOfTotal不是此搜索中的列，而是列标题。

你需要：

SELECT        TOP 1 ID, SUM(K + L + M + N + AD + AR) AS sumofTotal
FROM            Calculator
GROUP BY ID
ORDER BY SUM(K + L + M + N + AD + AR) DESC