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我试图通过使用查询在 Access 中创建计算。目前，一个查询计算“MPP Oil”（最大生产潜力）的值，另一个查询需要使用该值来计算“未分配损失”。这些计算使用来自基本查询“PEBaseQuery”的公司/资产/年份数据。计算未分配损失的其他输入值是使用 ID 引用的……不过，我的代码似乎有些问题，请帮忙！

SELECT 
    qb1.CompanyName, 
    qb1.AssetName, 
    qb1.Year, 
    (qb3.MPPOilRevised 
     - SUM(qb1.DatapointValue) 
     - SUM(qb2.DatapointValue * 1000000)) AS Result
FROM 
    ((PEBaseQuery AS qb1 
    INNER JOIN PEBaseQuery AS qb2 
    ON qb1.Year = qb2.Year AND qb1.AssetName=qb2.AssetName)
    INNER JOIN PE_MPPOilRevised AS qb3 
    ON qb1.Year = qb3.Year AND qb1.AssetName=qb3.AssetName)
WHERE 
    qb1.DatapointID in (2033, 2035, 2043, 2037, 2031) 
AND qb2.DatapointID=2003
GROUP BY qb1.CompanyName, qb1.AssetName, qb1.Year;
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2 回答 2

1

根据您在评论中提到的错误：

错误“您尝试执行的查询不包含指定表达式 'CompanyName' 作为聚合函数的一部分”

使用聚合函数需要您按 SELECT 列表中出现的列而不是聚合列进行分组。

编辑：

我认为这就是你要找的：

SELECT
    qb1.CompanyName, 
    qb1.AssetName, 
    qb1.Year, 
    qb3.MPPOilRevised - TotalDataPointValue - TotalDataPointValueFactor
FROM
    ((
        SELECT 
            qb1.CompanyName, 
            qb1.AssetName, 
            qb1.Year, 
            SUM(qb1.DatapointValue) 'TotalDataPointValue',
            SUM(qb2.DatapointValue * 1000000) 'TotalDataPointValueFactor'
        FROM 
            (PEBaseQuery AS qb1 
            INNER JOIN PEBaseQuery AS qb2 
            ON qb1.Year = qb2.Year AND qb1.AssetName = qb2.AssetName)
        WHERE 
            qb1.DatapointID in (2033, 2035, 2043, 2037, 2031) 
        AND qb2.DatapointID = 2003
        GROUP BY qb1.CompanyName, qb1.AssetName, qb1.Year
    ) qb1
    INNER JOIN PE_MPPOilRevised AS qb3 
    ON qb1.Year = qb3.Year AND qb1.AssetName=qb3.AssetName)
于 2012-08-26T17:04:59.540 回答
0

创建聚合查询时，每个选定的字段都必须进行聚合或分组。

尝试：

SELECT 
    qb1.CompanyName, 
    qb1.AssetName, 
    qb1.Year, 
    (qb3.MPPOilRevised 
     - SUM(qb1.DatapointValue) 
     - SUM(qb2.DatapointValue * 1000000)) AS Result
FROM 
    PEBaseQuery AS qb1 
    INNER JOIN PEBaseQuery AS qb2 
    ON qb1.Year = qb2.Year AND qb1.Assetname=qb2.AssetName
    INNER JOIN PE_MPPOilRevised AS qb3 
    ON qb1.Year = qb3.Year AND qb1.Assetname=qb3.AssetName
WHERE 
    qb1.DatapointID in (2033, 2035, 2043, 2037, 2031) 
AND qb2.DatapointID=2003;
GROUP BY
    qb1.CompanyName, 
    qb1.AssetName, 
    qb1.Year
于 2012-08-26T17:04:24.837 回答