我想增加一列，然后根据另一列中的值停止并重新开始。
例如：
我有一张桌子：
CustomerID Reportdate True_False
9001 2013-01-01 0
9001 2013-02-01 0
9001 2013-03-01 0
9001 2013-04-01 1
9001 2013-05-01 0
9001 2013-06-01 1
9001 2013-07-01 1
9001 2013-08-01 0
9001 2013-09-01 1
9001 2013-10-01 0
9001 2013-11-01 0
9001 2013-12-01 0
9001 2014-01-01 1
9001 2014-02-01 1
9001 2014-03-01 0
9001 2014-04-01 0
9001 2014-05-01 0
9001 2014-06-01 0
9001 2014-07-01 0
9001 2014-08-01 0
9001 2014-09-01 1
9001 2014-10-01 1
9001 2014-11-01 1
9001 2014-12-01 1
9002 2013-01-01 0
9002 2013-02-01 0
9002 2013-03-01 0
9002 2013-04-01 1
9002 2013-05-01 1
9002 2013-06-01 1
9002 2013-07-01 0
9002 2013-08-01 1
9002 2013-09-01 0
9002 2013-10-01 1
9002 2013-11-01 1
9002 2013-12-01 1
9002 2014-01-01 1
9002 2014-02-01 0
9002 2014-03-01 0
9002 2014-04-01 0
9002 2014-05-01 0
9002 2014-06-01 0
9002 2014-07-01 1
9002 2014-08-01 1
9002 2014-09-01 1
9002 2014-10-01 0
9002 2014-11-01 1
9002 2014-12-01 0
所需的输出：
CustomerID Reportdate True_False Sequence
9001 2013-01-01 0 1
9001 2013-02-01 0 2
9001 2013-03-01 0 3
9001 2013-04-01 1 0
9001 2013-05-01 0 1
9001 2013-06-01 1 0
9001 2013-07-01 1 0
9001 2013-08-01 0 1
9001 2013-09-01 1 0
9001 2013-10-01 0 1
9001 2013-11-01 0 2
9001 2013-12-01 0 3
9001 2014-01-01 1 0
9001 2014-02-01 1 0
9001 2014-03-01 0 1
9001 2014-04-01 0 2
9001 2014-05-01 0 3
9001 2014-06-01 0 4
9001 2014-07-01 0 5
9001 2014-08-01 0 6
9001 2014-09-01 1 0
9001 2014-10-01 1 0
9001 2014-11-01 1 0
9001 2014-12-01 1 0
9002 2013-01-01 0 1
9002 2013-02-01 0 2
9002 2013-03-01 0 3
9002 2013-04-01 1 0
9002 2013-05-01 1 0
9002 2013-06-01 1 0
9002 2013-07-01 0 1
9002 2013-08-01 1 0
9002 2013-09-01 0 1
9002 2013-10-01 1 0
9002 2013-11-01 1 0
9002 2013-12-01 1 0
9002 2014-01-01 1 0
9002 2014-02-01 0 1
9002 2014-03-01 0 2
9002 2014-04-01 0 3
9002 2014-05-01 0 4
9002 2014-06-01 0 5
9002 2014-07-01 1 0
9002 2014-08-01 1 0
9002 2014-09-01 1 0
9002 2014-10-01 0 1
9002 2014-11-01 1 0
9002 2014-12-01 0 1
因此序列字段将其操作数增加1，其中＆＃34; True_False＆＃34;为0然后停在＆＃34; True_False＆＃34;为1并随后重复增量以创建所需输出中显示的序列。
欢迎所有帮助，
CREATE TABLE test ( CustomerID bigint, DateKey date, True_false bit, ); insert into test values (9001,'2013-01-01','1'), (9001,'2013-02-01','0'), (9001,'2013-03-01','0'), (9001,'2013-04-01','0'), (9001,'2013-05-01','1'), (9001,'2013-06-01','1'), (9001,'2013-07-01','0'), (9001,'2013-08-01','0'), (9001,'2013-09-01','0'), (9001,'2013-10-01','0'), (9001,'2013-11-01','0'), (9001,'2013-12-01','1'), (9001,'2014-01-01','1'), (9001,'2014-02-01','0'), (9001,'2014-03-01','1'), (9001,'2014-04-01','0'), (9001,'2014-05-01','0'), (9001,'2014-06-01','1'), (9001,'2014-07-01','1'), (9001,'2014-08-01','0'), (9001,'2014-09-01','1'), (9001,'2014-10-01','0'), (9002,'2014-11-01','0'), (9002,'2014-12-01','0'), (9002,'2013-01-01','0'), (9002,'2013-02-01','0'), (9002,'2013-03-01','0'), (9002,'2013-04-01','1'), (9002,'2013-05-01','1'), (9002,'2013-06-01','0'), (9002,'2013-07-01','1'), (9002,'2013-08-01','1'), (9002,'2013-09-01','1'), (9002,'2013-10-01','1'), (9002,'2013-11-01','0'), (9002,'2013-12-01','1'), (9002,'2014-01-01','1'), (9002,'2014-02-01','0'), (9002,'2014-03-01','1'), (9002,'2014-04-01','1'), (9002,'2014-05-01','1'), (9002,'2014-06-01','0'), (9002,'2014-07-01','1'), (9002,'2014-08-01','1'), (9002,'2014-09-01','0'), (9002,'2014-10-01','0'), (9002,'2014-11-01','0'), (9002,'2014-12-01','0')
答案 0 :(得分：4)
这应该可以解决问题：
declare @t table (CustomerID int, Reportdate date, True_False int)
insert @t values
(9001, '2013-01-01', 0),
(9001, '2013-02-01', 0),
(9001, '2013-03-01', 0),
(9001, '2013-04-01', 1),
(9001, '2013-05-01', 0),
(9001, '2013-06-01', 1),
(9001, '2013-07-01', 1),
(9001, '2013-08-01', 0),
(9001, '2013-09-01', 1),
(9001, '2013-10-01', 0),
(9001, '2013-11-01', 0),
(9001, '2013-12-01', 0),
(9001, '2014-01-01', 1),
(9001, '2014-02-01', 1),
(9001, '2014-03-01', 0),
(9001, '2014-04-01', 0),
(9001, '2014-05-01', 0),
(9001, '2014-06-01', 0),
(9001, '2014-07-01', 0),
(9001, '2014-08-01', 0),
(9001, '2014-09-01', 1),
(9001, '2014-10-01', 1),
(9001, '2014-11-01', 1),
(9001, '2014-12-01', 1),
(9002, '2013-01-01', 0),
(9002, '2013-02-01' , 0),
(9002, '2013-03-01' , 0),
(9002, '2013-04-01', 1),
(9002, '2013-05-01' , 1),
(9002, '2013-06-01' ,1),
(9002, '2013-07-01', 0),
(9002, '2013-08-01', 1),
(9002, '2013-09-01', 0),
(9002, '2013-10-01', 1),
(9002, '2013-11-01', 1),
(9002, '2013-12-01', 1),
(9002, '2014-01-01', 1),
(9002, '2014-02-01', 0),
(9002, '2014-03-01', 0),
(9002, '2014-04-01', 0),
(9002, '2014-05-01', 0),
(9002, '2014-06-01', 0),
(9002, '2014-07-01', 1),
(9002, '2014-08-01', 1),
(9002, '2014-09-01', 1),
(9002, '2014-10-01', 0),
(9002, '2014-11-01', 1),
(9002, '2014-12-01', 0)
;with x as (
select *, sum(true_false) over(partition by customerid order by reportdate) g
from @t
)
select customerid, reportdate, row_number() over(partition by customerid, g order by reportdate) - case when g = 0 then 0 else 1 end seq
from x
答案 1 :(得分：0)
希望这有助于， 该解决方案提供了OP
所要求的精确结果;WITH cteResultset(CustomerID ,DateKey, True_false) AS
(
SELECT 9001,CAST('2013-01-01' AS DATE),CAST(0 AS BIT) UNION ALL
SELECT 9001,'2013-02-01',0 UNION ALL
SELECT 9001,'2013-03-01',0 UNION ALL
SELECT 9001,'2013-04-01',1 UNION ALL
SELECT 9001,'2013-05-01',0 UNION ALL
SELECT 9001,'2013-06-01',1 UNION ALL
SELECT 9001,'2013-07-01',1 UNION ALL
SELECT 9001,'2013-08-01',0 UNION ALL
SELECT 9001,'2013-09-01',1 UNION ALL
SELECT 9001,'2013-10-01',0 UNION ALL
SELECT 9001,'2013-11-01',0 UNION ALL
SELECT 9001,'2013-12-01',0 UNION ALL
SELECT 9001,'2014-01-01',1 UNION ALL
SELECT 9001,'2014-02-01',1 UNION ALL
SELECT 9001,'2014-03-01',0 UNION ALL
SELECT 9001,'2014-04-01',0 UNION ALL
SELECT 9001,'2014-05-01',0 UNION ALL
SELECT 9001,'2014-06-01',0 UNION ALL
SELECT 9001,'2014-07-01',0 UNION ALL
SELECT 9001,'2014-08-01',0 UNION ALL
SELECT 9001,'2014-09-01',1 UNION ALL
SELECT 9001,'2014-10-01',1 UNION ALL
SELECT 9001,'2014-11-01',1 UNION ALL
SELECT 9001,'2014-12-01',1 UNION ALL
SELECT 9002,'2013-01-01',0 UNION ALL
SELECT 9002,'2013-02-01',0 UNION ALL
SELECT 9002,'2013-03-01',0 UNION ALL
SELECT 9002,'2013-04-01',1 UNION ALL
SELECT 9002,'2013-05-01',1 UNION ALL
SELECT 9002,'2013-06-01',1 UNION ALL
SELECT 9002,'2013-07-01',0 UNION ALL
SELECT 9002,'2013-08-01',1 UNION ALL
SELECT 9002,'2013-09-01',0 UNION ALL
SELECT 9002,'2013-10-01',1 UNION ALL
SELECT 9002,'2013-11-01',1 UNION ALL
SELECT 9002,'2013-12-01',1 UNION ALL
SELECT 9002,'2014-01-01',1 UNION ALL
SELECT 9002,'2014-02-01',0 UNION ALL
SELECT 9002,'2014-03-01',0 UNION ALL
SELECT 9002,'2014-04-01',0 UNION ALL
SELECT 9002,'2014-05-01',0 UNION ALL
SELECT 9002,'2014-06-01',0 UNION ALL
SELECT 9002,'2014-07-01',1 UNION ALL
SELECT 9002,'2014-08-01',1 UNION ALL
SELECT 9002,'2014-09-01',1 UNION ALL
SELECT 9002,'2014-10-01',0 UNION ALL
SELECT 9002,'2014-11-01',1 UNION ALL
SELECT 9002,'2014-12-01',0
),cte_Sequence AS
(
SELECT ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) AS Id,*
FROM cteResultset ),
cte AS (
SELECT Id,
CustomerID,
DateKey,
True_false,
True_false AS Part
FROM cte_Sequence
WHERE id = 1
UNION ALL
SELECT a.Id,
a.CustomerID,
a.DateKey,
a.True_false,
cte.Part + a.True_false
FROM cte
INNER JOIN cte_Sequence a
ON cte.id + 1 = a.id
)
SELECT Id,CustomerID,
DateKey,
True_false,
row_number() OVER (
PARTITION BY CustomerID,
Part ORDER BY DateKey
) AS Sequence
FROM cte
WHERE True_false = 0
UNION
SELECT id,CustomerID,
DateKey,
True_false,
0 AS Sequence
FROM cte
WHERE True_false = 1
ORDER BY Id
OPTION (MAXRECURSION 32767);
输出：
Id CustomerID DateKey True_false Sequence
1 9001 2013-01-01 0 1
2 9001 2013-02-01 0 2
3 9001 2013-03-01 0 3
4 9001 2013-04-01 1 0
5 9001 2013-05-01 0 1
6 9001 2013-06-01 1 0
7 9001 2013-07-01 1 0
8 9001 2013-08-01 0 1
9 9001 2013-09-01 1 0
10 9001 2013-10-01 0 1
11 9001 2013-11-01 0 2
12 9001 2013-12-01 0 3
13 9001 2014-01-01 1 0
14 9001 2014-02-01 1 0
15 9001 2014-03-01 0 1
16 9001 2014-04-01 0 2
17 9001 2014-05-01 0 3
18 9001 2014-06-01 0 4
19 9001 2014-07-01 0 5
20 9001 2014-08-01 0 6
21 9001 2014-09-01 1 0
22 9001 2014-10-01 1 0
23 9001 2014-11-01 1 0
24 9001 2014-12-01 1 0
25 9002 2013-01-01 0 1
26 9002 2013-02-01 0 2
27 9002 2013-03-01 0 3
28 9002 2013-04-01 1 0
29 9002 2013-05-01 1 0
30 9002 2013-06-01 1 0
31 9002 2013-07-01 0 1
32 9002 2013-08-01 1 0
33 9002 2013-09-01 0 1
34 9002 2013-10-01 1 0
35 9002 2013-11-01 1 0
36 9002 2013-12-01 1 0
37 9002 2014-01-01 1 0
38 9002 2014-02-01 0 1
39 9002 2014-03-01 0 2
40 9002 2014-04-01 0 3
41 9002 2014-05-01 0 4
42 9002 2014-06-01 0 5
43 9002 2014-07-01 1 0
44 9002 2014-08-01 1 0
45 9002 2014-09-01 1 0
46 9002 2014-10-01 0 1
47 9002 2014-11-01 1 0
48 9002 2014-12-01 0 1
答案 2 :(得分：0)
这可以使用标识列和while循环，这里我使用临时表编写。
select * into #temp from test
ALTER TABLE #temp
ADD ID INT IDENTITY(1,1)
ALTER TABLE #temp
ADD Sequence INT
DECLARE @Min INT,@Max INT,@COUNT INT
SET @Min=1
SET @COUNT=1
SELECT @Max=COUNT(1) FROM test
WHILE(@Min<=@Max)
BEGIN
IF((SELECT True_false FROM #temp WHERE ID=@Min)=0)
BEGIN
update #temp set Sequence=@COUNT WHERE ID=@Min
SET @COUNT=@COUNT+1
END
ELSE
BEGIN
update #temp set Sequence=0 WHERE ID=@Min
SET @COUNT=1
END
SET @Min=@Min+1
END
SELECT * FROM #temp
答案 3 :(得分：-1)
您可以使用窗口函数和来计算运行总计，如下所示
;with cte as (
select *, sum(True_false) over(partition by customerid order by ReportDate) TF from #customer
)
select *, [Sequence] = row_number() over (partition by Customerid, TF order by TF) - 1 from cte