问题描述
WITH numbered AS (
SELECT
ID, Seq, Amt,
SeqGroup = ROW_NUMBER() OVER (PARTITION BY ID ORDER BY Seq) - Seq
FROM atable
)
SELECT
ID,
Start = MIN(Seq),
[End] = MAX(Seq),
TotalAmt = SUM(Amt)
FROM numbered
GROUP BY ID, SeqGroup
ORDER BY ID, Start
;
解决方法
我有一个这样的表:
ID Seq Amt
1 1 500
1 2 500
1 3 500
1 5 500
2 10 600
2 11 600
3 1 700
3 3 700
我想将连续序列号分组为一行,如下所示:
ID Start End TotalAmt
1 1 3 1500
1 5 5 500
2 10 11 1200
3 1 1 700
3 3 3 700
请帮助实现此结果。