我有一个表，该表具有给定公司的 12行，代表特定月份该公司的付款，该表的结构具有
数字代表月份，因此January = [1]，February = [2]等。
CREATE TABLE [dbo].[TblMonths](
[Uid] int not null IDENTITY Primary KEY,
[Id] [float] NULL,
[Company] [nvarchar](255) NULL,
[Days] [float] NULL,
[Pay] [float] NULL,
[1] [float] NULL,
[2] [float] NULL,
[3] [float] NULL,
[4] [float] NULL,
[5] [float] NULL,
[6] [float] NULL,
[7] [float] NULL,
[8] [float] NULL,
[9] [float] NULL,
[10] [float] NULL,
[11] [float] NULL,
[12] [float] NULL
) ;
insert into [TblMonths] values
(2, 'COMPANY_A', 17, 3 ,0, 0 ,51,0 ,0, 0 ,0 ,0, 0 ,0, 0, 0),
(2, 'COMPANY_A', 18.6, 3 ,0, 0 ,0, 0 ,0, 0 ,56 ,0, 0 ,0, 0, 0),
(2, 'COMPANY_A', 19.2, 5 ,0, 0 ,0, 0 ,0, 0 ,0 ,0, 96 ,0, 0, 0),
(2, 'COMPANY_A', 19.75, 4 ,0, 0 ,0, 0 ,79,0 ,0 ,0, 0 ,0, 0, 0),
(2, 'COMPANY_A', 20, 2 ,0, 0 ,0, 40 ,0, 0 ,0 ,0, 0 ,0, 0, 0),
(2, 'COMPANY_A', 22.5, 2 ,0, 0 ,0, 0 ,0, 0 ,0 ,0, 0 ,0,45, 0),
(2, 'COMPANY_A', 23.5, 2 ,47,0 ,0, 0 ,0, 0 ,0 ,0, 0 ,0, 0, 0),
(2, 'COMPANY_A', 25, 2 ,0, 0 ,0, 0 ,0, 0 ,0 ,0, 0 ,0, 0, 50),
(2, 'COMPANY_A', 26, 2 ,0, 52 ,0, 0 ,0, 0 ,0 ,0, 0 ,0, 0, 0),
(2, 'COMPANY_A', 26.6, 3 ,0, 0 ,0, 0 ,0, 0 ,0 ,80,0 ,0, 0, 0),
(2, 'COMPANY_A', 28.5, 2 ,0, 0 ,0, 0 ,0, 0 ,0 ,0, 0 ,57,0, 0),
(2, 'COMPANY_A', 29.3, 3 ,0, 0 ,0, 0 ,0, 88 ,0 ,0, 0 ,0, 0, 0),
(3, 'COMPANY_B', 13.8, 5 ,0, 0 ,69,0 ,0, 0 ,0 ,0, 0 ,0, 0, 0),
(3, 'COMPANY_B', 15, 2 ,0, 0 ,0, 0 ,0, 0 ,30 ,0, 0 ,0, 0, 0),
(3, 'COMPANY_B', 16, 1 ,0, 0 ,0, 0 ,0, 0 ,0 ,0, 0 ,0,16, 0),
(3, 'COMPANY_B', 20, 3 ,0, 0 ,0, 0 ,0, 0 ,0 ,60,0 ,0, 0, 0),
(3, 'COMPANY_B', 20, 4 ,0, 0 ,0, 0 ,0, 0 ,0 ,0, 0 ,0, 0, 80),
(3, 'COMPANY_B', 20.5, 2 ,0, 0 ,0, 41 ,0, 0 ,0 ,0, 0 ,0, 0, 0),
(3, 'COMPANY_B', 23.25, 4 ,0, 0 ,0, 0 ,0, 0 ,0 ,0,93 ,0, 0, 0),
(3, 'COMPANY_B', 23.3, 3 ,0, 0 ,0, 0 ,70,0 ,0 ,0, 0 ,0, 0, 0),
(3, 'COMPANY_B', 23.5, 2 ,47,0 ,0, 0 ,0, 0 ,0 ,0, 0 ,0, 0, 0),
(3, 'COMPANY_B', 28, 1 ,0, 28 ,0, 0 ,0, 0 ,0 ,0, 0 ,0, 0, 0),
(3, 'COMPANY_B', 29, 3 ,0, 0 ,0, 0 ,0, 87 ,0 ,0, 0 ,0, 0, 0),
(3, 'COMPANY_B', 29.3, 3 ,0, 0 ,0, 0 ,0, 0 ,0 ,0, 0 ,88,0, 0);
我想将每个 Company_X 的所有 12 行都转换为仅 1 行，并在月列的值与"Days" ...
0例如ID COMPANY JAN FEB MAR APR MAR JUN JUL AGO SEP OCT NOV DEC
2 COMPANY_A 23.5 26 17 20 19.75 29.3 18.6 26.6 19.2 28.5 22.5 25
3 COMPANY_B 23.5 28 13.8 20.5 23.3 29 15 20 23.25 29.3 16 20
在on row 7,中具有值 47 ，因此我想在列january上获得 23.5 < / strong>，在"Days"的所有其他行中都有id=2，这就是为什么我要搜索与0不同的值的原因。
对于0行february，其值为 52 ，列9的值为 26
对于Days，第一行的值为 51 ，因此我想在列march上的值为 17 ，这样我会得到类似的东西：
"Days"脚本的外观如何？
答案 0 :(得分：1)
如果我们可以假设一家公司和ID的月份中没有一个月的非零值以上...如果我们不能假设您希望它们Sum（）在一起吗？最小值或最大值？只需相应地调整以下内容。注意：如果为min，则可能必须将else上的0忽略掉，并在min之后合并0。
现在，如果在col 1-12的值都不为0的情况下想要零，则为每个case语句添加else。
SELECT ID
, Company
, max(case when [1] <> 0 then Days else 0 end) as JAN
, max(case when [2] <> 0 then Days else 0 end) as FEB
, max(case when [3] <> 0 then Days else 0 end) as MAR
, max(case when [4] <> 0 then Days else 0 end) as APR
, max(case when [5] <> 0 then Days else 0 end) as MAY
, max(case when [6] <> 0 then Days else 0 end) as JUN
, max(case when [7] <> 0 then Days else 0 end) as JUL
, max(case when [8] <> 0 then Days else 0 end) as AUG
, max(case when [9] <> 0 then Days else 0 end) as SEP
, max(case when [10] <> 0 then Days else 0 end) as OCT
, max(case when [11] <> 0 then Days else 0 end) as NOV
, max(case when [12] <> 0 then Days else 0 end) as DEC
FROM tblMonths
GROUP BY ID, Company;
给我们：
+----+----+-----------+------+-----+------+------+-------+------+------+------+-------+------+------+-----+
| | ID | Company | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC |
+----+----+-----------+------+-----+------+------+-------+------+------+------+-------+------+------+-----+
| 1 | 2 | COMPANY_A | 23,5 | 26 | 17 | 20 | 19,75 | 29,3 | 18,6 | 26,6 | 19,2 | 28,5 | 22,5 | 25 |
| 2 | 3 | COMPANY_B | 23,5 | 28 | 13,8 | 20,5 | 23,3 | 29 | 15 | 20 | 23,25 | 29,3 | 16 | 20 |
+----+----+-----------+------+-----+------+------+-------+------+------+------+-------+------+------+-----+
当然，我已经习惯了两个月的时间MAR和一个AGO时间，所以我调整了这些时间。