如果在 Oracle SQL 中进行累积计数

Question

请参阅附件以供参考。假设我有一个 Table CARRIER_RESPONSE，具有以下字段 Carrier、Shipment、Acceptance、Day

我想获得每个承运人每天的累计接受计数。

至此我得到了下面的代码：

SELECT Carrier
,Shipment
,Acceptance
,Day
,ROW_NUMBER() OVER (
                        PARTITION BY Carrier
                        , Day
                        , Acceptance
                        ORDER BY Day
                    ) AS "Cumulative Count of Acceptance per Day"
FROM CARRIER_RESPONSE

此代码为接受响应 = A 的行提供了正确的运行计数，但在接受响应 = D 的行上，我还想显示接受响应 = A 的运行计数.

基本上每一行我都想指出今天承运人接受了多少次装运。这可能吗？

谢谢，

阿米尔

运营商响应：

Answer 1

一种方法 - 使用带有分析子句和窗口的求和。

SELECT Carrier
,Shipment
,Acceptance
,Day
,sum(Case when Acceptance is not null then 1 else 0 end) OVER (
                        PARTITION BY Carrier
                        , Day
                        ORDER BY Day
                        ROWS between unbounded preceding and current row
                    ) AS "Cumulative Count of Acceptance per Day"
FROM CARRIER_RESPONSE

Answer 2

重新阅读后，您似乎需要计算 A 和 D

 SELECT Carrier
        ,Shipment
        ,Acceptance
        ,Day
        ,sum(Case when Acceptance='A' then 1 else 0 end) OVER (
                                PARTITION BY Carrier                                
                                ORDER BY Day                                
                            ) AS "Cumulative Count of Acceptance per Day",
sum(Case when Acceptance='D' then 1 else 0 end) OVER (
                                PARTITION BY Carrier                                
                                ORDER BY Day                                
                            ) AS "Cumulative Count for Deny per Day"
        FROM CARRIER_RESPONSE

Answer 3

我想你想要：

SELECT Carrier, Shipment, Acceptance, Day,
       SUM(CASE WHEN Acceptance = 'A' THEN 1 ELSE 0 END) OVER
           (PARTITION BY Carrier
            ORDER BY Day
           ) AS "Cumulative Count of Acceptance per Day"
FROM CARRIER_RESPONSE;

如果Acceptance只取值'A'和NULL，那么你可以将其缩短为：

SELECT Carrier, Shipment, Acceptance, Day,
       COUNT(Acceptance) OVER
           (PARTITION BY Carrier
            ORDER BY Day
           ) AS "Cumulative Count of Acceptance per Day"
FROM CARRIER_RESPONSE;

如果在 Oracle SQL 中进行累积计数

Doing a Cumulative Count if in Oracle SQL

sql

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cumulative-sum

rownum