Question

我的数据按以下方式设置：

Person  Account Revenue Region
    A       W       100     AU
    A       W       200     AU
    A       W       300     AU
    B       X       200     AU
    B       X       50      CH
    B       X       50      CH

以下是示例数据的代码：

IF OBJECT_ID('tempdb..#StackTest') IS NOT NULL
    DROP TABLE #StackTest;

CREATE TABLE #StackTest
(Person varchar(1)
, Account varchar(1)
, Revenue int
, Region varchar(2));

INSERT INTO #StackTest
(Person
, Account
, Revenue
, Region)
VALUES
('A', 'W', 100, 'AU'),
('A', 'W', 200, 'AU'),
('A', 'W', 300, 'AU'),
('B', 'X', 200, 'AU'),
('B', 'X', 50, 'CH'),
('B', 'X', 50, 'CH');

我需要编写一个SQL查询，当帐户Q的总和超过Y时，只对那些帐户的收入求和。同样，当帐户Q的总和超过Y时，我还需要只统计那些帐户。所以如果我的话区域AU的总和阈值是500，区域CH的总和阈值是200，那么我想要以下输出

Output  # of accounts exceeding threshold sum   Revenue from these accounts 
A                     1                                  600    
B                     0                                   0

但是，我当前的查询是单独检查每个订单项，而不是在帐户级别。

我该怎么办？

Answer 1

在标准SQL中，您将使用两个级别的聚合。我怀疑查询是这样的：

select person,
       sum(case when region = 'AU' and revenue > 500 then 1
                when region = 'CH' and revenue > 200 then 1
                else 0
           end) as numAccounts,
       sum(case when region = 'AU' and revenue > 500 then revenue
                when region = 'CH' and revenue > 200 then revenue
                else 0
           end) as reveue,
from (select person, region, sum(revenue) as revenue
      from t
      group by person, region
     ) t
group by person;

Answer 2

以下查询将按人/地区汇总，然后应用单独表格中的区域阈值以生成结果。

更新以考虑单独的区域阈值

IF OBJECT_ID('tempdb..#Thresholds') IS NOT NULL
    DROP TABLE #Thresholds
CREATE TABLE #Thresholds (Region VARCHAR(2), Revenue INT)
INSERT #Thresholds VALUES ('AU', 500), ('CH', 200)

--DECLARE @Threshold INT = 500
SELECT
    T.Person,
    SUM(CASE WHEN T.[Revenue] >= Thresholds.Revenue THEN T.[Count] ELSE 0 END) AS [# of accounts exceeding threshold sum],
    SUM(CASE WHEN T.[Revenue] >= Thresholds.Revenue THEN T.[Revenue] ELSE 0 END) AS [Revenue from these accounts]
FROM (
    SELECT
        Person,
        Region, -- Add region to apply thresholds by region
        COUNT(DISTINCT Account) AS [Count],
        SUM(Revenue) AS [Revenue]
    FROM #StackTest
    GROUP BY Person, Region
) T
    INNER JOIN #Thresholds Thresholds
        ON Thresholds.Region = T.Region
GROUP BY Person
ORDER BY Person

Teradata中的条件总和和计数（SQL帮助）

2 个答案: