SQL如何将表从行转换为列

Question

我想从行到列编写sql查询转置表，如下图所示

非常感谢。

Answer 1

我没有使用列的确切名称，但你可以试试这个，

SELECT GOOD2,
       NAME,
       MAX(CASE WHEN [TYPE] = 'BF' THEN VALUE END) BQTY,
       MAX(CASE WHEN [TYPE] = 'RC' THEN VALUE END) BQTY,
       MAX(CASE WHEN [TYPE] = 'ISU' THEN VALUE END) BQTY,
       MAX(CASE WHEN [TYPE] = 'CF' THEN VALUE END) BQTY
FROM   TABLE1
GROUP BY
       GOOD2,
       NAME

Answer 2

使用透视：

SELECT  Goods_ID, 
        Name, UM, 
        ISNULL([B/F],0) as [B/F], 
        ISNULL([REC],0) as [REC],
        ISNULL([ISU],0) as [ISU],
        ISNULL([C/F],0) as [C/F]
FROM (
    SELECT Goods_ID, Name, UM, [Type], NULLIF([In-Qty],0) as Qty
    FROM YourTable 
    UNION ALL
    SELECT Goods_ID, Name, UM, [Type],NULLIF([Out-Qty],0)
    FROM YourTable 
    UNION ALL
    SELECT Goods_ID, Name, UM, [Type],NULLIF([B-Qty],0)
    FROM YourTable 
    ) as p
PIVOT (
MIN(Qty) FOR [Type] IN ([B/F],[REC],[ISU],[C/F])
) as pvt

输出：

Goods_ID    Name    UM  B/F     REC     ISU     C/F
CH006       CH006   Kg  11648   11648   0       23296
CH007       CH007   Kg  97584   278400  -315006 60978

Answer 3

你只想按他们分组。这是一个理论上的例子：

SELECT * FROM table_name GROUP BY column_name 

（您需要按照您想要的顺序包含表格中的所有列）

Answer 4

未经测试，但应该是这样的......

select goods_id, name, [B/F], REC, ISU, [C/F] from 
    (select goods_id, name, UM, B-Qty from 
    yourtable ) 
    tbl pivot (sum(B-Qty) for UM in ( [B/F], REC, ISU, [C/F] ) 
    as p

Answer 5

我想说你需要使用PIVOT

查看具有不同要求的相同 question ，以及实现预期输出的几乎所有方法。