如何使此查询使用Not in
条件而不是整个表格,但限制每个客户的条件
SELECT
dbo.Service.Service_ID
,dbo.Service.Service_RNO
,dbo.Customer.Cust_Name
,dbo.Service.Agrement_ID
,dbo.Customer.Cust_ID
,dbo.Service.Service_Date
,dbo.Service.Next_Service
FROM
dbo.Service
INNER JOIN
dbo.Customer ON dbo.Service.Cust_ID = dbo.Customer.Cust_ID
WHERE
Next_Service BETWEEN '2016-01-01' AND '2016-02-01'
AND Next_Service NOT IN (SELECT Service_Date from Service)
ORDER BY
Next_Service
例如,让我说我有这个数据
Service_ID Service_RNO Cust_Name Agrement_ID Cust_ID Service_Date Next_Service
1 1 customer1 35 15 2016-01-01 2016-01-31
2 2 customer1 35 15 2016-01-31 2016-03-2
3 3 customer2 12 21 2016-01-31 2016-03-2
由于下一个服务存在于service_date
中,因此此查询的输出将为空
该查询应该为客户提供2行数据,因为该客户Next_Service
中不存在service_date
答案 0 :(得分:3)
假设我理解这个问题:
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