Question

我有一个独立运行的子查询，但是当用作过滤器时似乎什么也没做。

我的数据不包含任何NULL。我可以运行子查询并获得期望的客户数量（具有PID的客户，例如％CLUSTER％），但是当我运行完整查询时，WHERE NOT IN子句似乎并没有过滤掉子客户，查询选择。

SELECT PID, ROUND(SUM(bookings),0) AS Bookings
FROM d_bookings
WHERE GU_Name NOT IN (
    SELECT DISTINCT(GU_NAME)
    FROM d_bookings 
    WHERE PID LIKE '%CLUSTER%'
    AND Sales_Level_1 IN (
    'GLOBAL SERVICE PROVIDER'
    ,'APJC__'
    ,'EMEAR-REGION'
    ,'AMERICAS'
    ,'CORP ADJUSTMENT'
    )
    AND Corp_Bookings = 'Y'
)
GROUP BY PID
ORDER BY Bookings DESC;

结果不应包含任何PID，例如％CLUSTER％。用英语来说，我希望向未购买集群的客户出售的所有PID的总预订量。子查询列出了DID购买集群的客户列表，而我试图从结果中排除这些客户。

这是一个示例表：

DROP TABLE IF EXISTS tmpbook;
CREATE TABLE tmpbook ("FYQ" char(10), "gu_name" char(10),"PID" char(20), "bookings" numeric);
INSERT INTO tmpbook
    VALUES 
        ('FY2019Q1', 'Company1','CLUSTER1',12345.67),
        ('FY2019Q1', 'Company1','SOMETHINGELSE',2345.67),
        ('FY2019Q1', 'Company2','CLUSTER2',345.67),
        ('FY2019Q1', 'Company2','SOMETHINGELSE',12345.67),
        ('FY2019Q1', 'Company3','SOMETHINGELSE',2345.67),
        ('FY2019Q1', 'Company3','SOMETHINGELSE',345.67) 
;

预期结果将是 NOTACLUSTER 2691.34（2345.67 + 345.67）

因为只有Company3没有购买集群（应该排除Company1和Company2，因为他们DID购买了集群。

Answer 1

子查询中WHERE子句的其余部分可能应该在主查询上：

SELECT PID, ROUND(SUM(bookings),0) AS Bookings
FROM d_bookings
WHERE GU_Name NOT IN (
    SELECT DISTINCT(GU_NAME)
    FROM d_bookings 
    WHERE PID LIKE '%CLUSTER%'
    )
    AND Corp_Bookings = 'Y'
    AND Sales_Level_1 IN (
    'GLOBAL SERVICE PROVIDER'
    ,'APJC__'
    ,'EMEAR-REGION'
    ,'AMERICAS'
    ,'CORP ADJUSTMENT'
)
GROUP BY PID
ORDER BY Bookings DESC;

但是，如果是这样，您应该可以将子查询替换为NOT LIKE，而不是：

SELECT PID, ROUND(SUM(bookings),0) AS Bookings
FROM d_bookings
WHERE PID NOT LIKE '%CLUSTER%'
    AND Corp_Bookings = 'Y'
    AND Sales_Level_1 IN (
    'GLOBAL SERVICE PROVIDER'
    ,'APJC__'
    ,'EMEAR-REGION'
    ,'AMERICAS'
    ,'CORP ADJUSTMENT'
    )
GROUP BY PID
ORDER BY Bookings DESC;

Answer 2

您的查询似乎应该为您提供空结果。因为两种记录类型的条件“ WHERE PID LIKE'％CLUSTER％”都为真。

例如

'Cluster1' LIKE '%CLUSTER%' --is  true

'NotACluster' LIKE '%CLUSTER%' --is  true

因此，如果您只想整理“ Cluster1”，“ Cluster1”等记录，则条件应类似于

PID LIKE 'Cluster%'

Answer 3

我最终遇到了两个问题。 1-我的数据搞砸了。 2-我的子查询一个主查询需要相同的约束。

SELECT PID, ROUND(SUM(BOOKINGS),0) AS BOOKINGS
FROM d_bookings
WHERE GU_Name NOT IN (
    SELECT GU_NAME
    FROM d_bookings
    WHERE PID LIKE '%CLUSTER%'
    AND Sales_Level_1 IN (
    'GLOBAL SERVICE PROVIDER'
    ,'APJC__'
    ,'EMEAR-REGION'
    ,'AMERICAS'
    ,'CORP ADJUSTMENT'
    )
    AND Corp_Bookings = 'Y')
AND Sales_Level_1 IN (
    'GLOBAL SERVICE PROVIDER'
    ,'APJC__'
    ,'EMEAR-REGION'
    ,'AMERICAS'
    ,'CORP ADJUSTMENT'
    )
AND Corp_Bookings = 'Y'
GROUP BY PID
ORDER BY BOOKINGS DESC;

具有WHERE NOT IN的子查询未按预期过滤数据

3 个答案: