我要找到每个存储的产品数量为那家商店的顾客是商店/数两项罪名被
Customer
Id | dealerId
1 | 10
2 | 11
3 | 10
Product
Id | CustomerId
100 | 1
200 | 3
300 | 2
store
Id
10
11
对于上面例子中的结果将是:
StoreId | value
10 | 2/2
11 | 1/1
我要找到每个存储的产品数量为那家商店的顾客是商店/数两项罪名被
Customer
Id | dealerId
1 | 10
2 | 11
3 | 10
Product
Id | CustomerId
100 | 1
200 | 3
300 | 2
store
Id
10
11
对于上面例子中的结果将是:
StoreId | value
10 | 2/2
11 | 1/1
select S.Id AS StoreId, COUNT(p.Id) AS ProductId, COUNT(CAST.Id) AS CustomerId
from Store S
left join Customer C on C.dealerId = Scheduler.StoreId
left join Product P on P.CustomerId = CAST.Id
group by S.Id
能否请您为我们提供了一个[SQL小提琴(http://sqlfiddle.com/)或在这里证明tableVariables一些样本数据:HTTP:// stackoverflo w.com/questions/37530075/sql-filling-missing-dates/37532218#37532218 – Ralph