Question

我不确定是否使用枢轴，因为我对此感到困惑。我在Fiddle

获得了一些样本数据

我正在寻找的结果是（如果为空记录则无效或空字符串）

 Name   Product m1SALES m1STARGET m1GROWTH m2SALES m2STARGET m2GROWTH m3SALES m3STARGET M3GROWTH
 ----------------------------------------------------------------------------------------- 
 John   A 5 100   5        10      100       10       NULL    NULL       NULL
 John    B  NULL    NULL      NULL     NULL    NULL      NULL     20      100    20

我在任何时候都只需要四分之一的记录。 1,2,3或4,5,6或7,8,9或10,11,12。其中月份+年份取决于数据，某个月可能没有销售记录。

我试过选择数据取决于月份+年份从同一张桌子3次，但没有运气。

Answer 1

这有点原始，但没有支点就可以完成工作：

SELECT DISTINCT
        name ,
        product ,
        ( SELECT    sales
          FROM      yourtable b
          WHERE     a.product = b.product
                    AND MONTH = 1
                    AND YEAR = 2014
        ) m1sales ,
        ( SELECT    starget
          FROM      yourtable b
          WHERE     a.product = b.product
                    AND MONTH = 1
                    AND YEAR = 2014
        ) m1starget ,
        ( SELECT    growth
          FROM      yourtable b
          WHERE     a.product = b.product
                    AND MONTH = 1
                    AND YEAR = 2014
        ) m1growth ,
        ( SELECT    sales
          FROM      yourtable b
          WHERE     a.product = b.product
                    AND MONTH = 2
                    AND YEAR = 2014
        ) m2sales ,
        ( SELECT    starget
          FROM      yourtable b
          WHERE     a.product = b.product
                    AND MONTH = 2
                    AND YEAR = 2014
        ) m2starget ,
        ( SELECT    growth
          FROM      yourtable b
          WHERE     a.product = b.product
                    AND MONTH = 2
                    AND YEAR = 2014
        ) m2growth ,
        ( SELECT    sales
          FROM      yourtable b
          WHERE     a.product = b.product
                    AND MONTH = 3
                    AND YEAR = 2014
        ) m3sales ,
        ( SELECT    starget
          FROM      yourtable b
          WHERE     a.product = b.product
                    AND MONTH = 3
                    AND YEAR = 2014
        ) m3starget ,
        ( SELECT    growth
          FROM      yourtable b
          WHERE     a.product = b.product
                    AND MONTH = 3
                    AND YEAR = 2014
        ) m3growth
FROM    yourtable a

ms SQL将多行连接到multitple列

1 个答案: