将 SUM 添加到 SQL 服务器查询结果

Question

我需要在 SQL 服务器查询结果的底部添加一个 SUM 函数。

这是我的查询：

SELECT 
    STATE, COUNTY, NAME, STNAME, CENSUS2010POP, ESTIMATESBASE2010
FROM 
    [CensusData].[dbo].[SUB-EST2014_ALL]
WHERE 
    (SUMLEV = '50') 
    AND (CENSUS2010POP > 100000) 
    AND (CENSUS2010POP < 200000)

阅读了几篇关于此的帖子和博客后，我将查询更新为以下内容：

SELECT 
    STATE, COUNTY, NAME = ISNULL(NAME, 'Total'), STNAME, 
    CENSUS2010POP = SUM(CENSUS2010POP), ESTIMATESBASE2010
FROM 
    [CensusData].[dbo].[SUB-EST2014_ALL]
WHERE 
    (SUMLEV = '50') 
    AND (CENSUS2010POP > 100000) 
    AND (CENSUS2010POP < 200000)
GROUP BY 
    ROLLUP(NAME)

然而，当我尝试运行修改后的查询时，出现错误：

Column 'CensusData.dbo.SUB-EST2014_ALL.STATE' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause.

我从未在 SQL 服务器中使用过 SUM 函数，所以我不确定这个错误是什么意思，也不知道如何修复它。

有人可以指出我的错误并告诉我如何解决吗？我是运行宁 SQL Server 2014.

Answer 1

尽管您可能可以让汇总工作，但也许这是我认为您想要的最简单的解决方法：

SELECT STATE, COUNTY, NAME, STNAME, CENSUS2010POP, ESTIMATESBASE2010, '' AS Aggregated
FROM [CensusData].[dbo].[SUB-EST2014_ALL]
WHERE (SUMLEV = '50') AND (CENSUS2010POP > 100000) AND (CENSUS2010POP < 200000)
UNION ALL
SELECT NULL, NULL, NULL, NULL, SUM(CENSUS2010POP), SUM(ESTIMATESBASE2010), 'Total'
FROM [CensusData].[dbo].[SUB-EST2014_ALL]
WHERE (SUMLEV = '50') AND (CENSUS2010POP > 100000) AND (CENSUS2010POP < 200000)
ORDER BY Aggregated

从技术上讲，额外的行可能不会出现在底部，所以我不得不添加一个额外的列来强制排序。

这是使用分组集的方法。由于您似乎只想要总计，我不相信 rollup 会起作用，除非您将四个值连接到一个计算列中。

SELECT
    STATE, COUNTY, NAME, STNAME,
    sum(CENSUS2010POP) as CENSUS2010POP,
    sum(ESTIMATESBASE2010) as ESTIMATESBASE2010)
FROM [CensusData].[dbo].[SUB-EST2014_ALL]
WHERE (SUMLEV = '50') AND (CENSUS2010POP > 100000) AND (CENSUS2010POP < 200000)
GROUP BY GROUPING SETS ((STATE, COUNTY, NAME, STNAME), ())
ORDER BY GROUPING(STATE)

将 SUM 添加到 SQL 服务器查询结果

Add SUM to SQL Server Query Results

sql-server-2014