SQL 服务器：将两行合并为一行

Question

我写了这个 T-SQL 查询：

SELECT 
    B.[Year], E.[Description] as GLClass, 
    D.Code, D.[GLDescription], 
    SUM(A.Jan) AS Jan, 
    SUM(A.Feb) AS Feb, 
    SUM(A.Mar) AS Mar, 
    SUM(A.Apr) AS Apr
FROM
    GeneralLedgers A 
INNER JOIN
    Years B ON A.YearID = B.ID
INNER JOIN
    CostCenters C ON A.CostCenterID = C.ID
INNER JOIN
    GLCodes D ON A.GLCodeID = D.ID 
INNER JOIN
    GLClassificationTypes E ON D.GLClassificationTypeID = E.ID
WHERE 
    A.YearID = '13' 
GROPU BY 
    B.[Year], D.Code, E.[Description], D.[GLDescription]
ORDER BY 
    D.Code, E.[Description]

它输出这个结果：

我想将 "Freight-in (Go) and Freight Savings" 行合并为一行并对一月、二月、三月、四月列的值求和。我试图在 "Code" 列上使用 Case When 子句查找“401040110”和“441010300”，但仍然找不到。

如何实现？

Answer 1

将 2 行中的其中一行转换为另一行以用于分组逻辑，其余的聚合应该无缝地在此之上工作。

SELECT B.[Year]
    ,E.[Description] AS GLClass
    ,case when D.Code = '441010300' then '401040110' else D.Code END    Code
    ,case when D.Code = '441010300' then 'Freight-in (Go)' else  D.[GLDescription] end [GLDescription]
    ,Sum(A.Jan) AS Jan
    ,Sum(A.Feb) AS Feb
    ,Sum(A.Mar) AS Mar
    ,Sum(A.Apr) AS Apr
FROM GeneralLedgers A
INNER JOIN Years B ON A.YearID = B.ID
INNER JOIN CostCenters C ON A.CostCenterID = C.ID
INNER JOIN GLCodes D ON A.GLCodeID = D.ID
INNER JOIN GLClassificationTypes E ON D.GLClassificationTypeID = E.ID
WHERE A.YearID = '13'
GROUP BY B.[Year]
    , case when D.Code = '441010300' then '401040110' else D.Code END   
    , E.[Description]
    , case when D.Code = '441010300' then 'Freight-in (Go)' else  D.[GLDescription] end
ORDER BY 3,2

SQL 服务器：将两行合并为一行

SQL Server : merge two rows into one

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