对每 n 个和组的 SQL 行求和

Question

我的数据如下：

QUARTER_CMT 销售部 7一39 8一23 9一33 10 一个 45 11 一个 50 12 A 110 1乙44 2乙56 3乙87 4乙22

我的目标是通过DEPT 每四个季度获得SALES 的总数，并将Quarter_CNT 数字保留为汇总。

QUARTER_CMT 部门销售_TOT 7个140 11 160 1 B 209

正在进行的代码。我想对总数进行分组并加入最新的QUARTER_CMT 以通过DEPT 获得一行：

选择 ROW_NUMBER() OVER(PARTITION BY DEPTORDER BY QUARTER_CMT) 作为 RN， QUARTER_CMT, 部门， --RANK() OVER(PARTITION BY ODDZIAL ORDER BY QUARTER_COUNT) AS RowNumberRankOrg, --NTILE(4) OVER(PARTITION BY ODDZIAL ORDER BY QUARTER_COUNT) AS RowNumberRank, 销售量 从表_1 按部门订购，季度_CMT

Answer 1

试试这个：

with a as (
  select 
    row_number() over(partition by dept order by quarter_cmt)-1 n, 
    quarter_cmt, dept, sales
  from t
  order by dept, quarter_cmt
) 
select min(quarter_cmt) quarter_cmt, dept, sum(sales) sales_tot
from a
group by dept, floor(n/4) 
order by dept, quarter_cmt
;

假设这个样本数据：

create or replace table t as
select $1 QUARTER_CMT, $2 DEPT, $3 SALES from values 
  (7,'A',39),
  (8,'A',23),
  (9,'A',33),
  (10,'A',45),
  (11,'A',50),
  (12,'A',110),
  (1,'B',44),
  (2,'B',56),
  (3,'B',87),
  (4,'B',22)
;

Answer 2

您需要将 row_number 除为 5 以确定周期

SELECT MIN (QUARTER_CMT) QUARTER_CMT, DEPT, SUM(SALES) SALES, PART
FROM (
    SELECT *, FLOOR(ROW_NUMBER() OVER(PARTITION BY DEPT ORDER BY QUARTER_CMT) / 5) AS PART
    FROM TABLE_1
) AS T
GROUP BY DEPT, PART
ORDER BY DEPT, PART

结果：

QUARTER_CMT DEPT SALES       PART
----------- ---- ----------- -----------
7           A    140         0
11          A    160         1
1           B    209         0