SQL SERVER计算ID的值

Question

我正在尝试为每个C.ID获得B.ID的计数。

到目前为止，我得到以下内容：

Select
C.ID,
COUNT(Distinct B.ID)AS 'Total bookings'

FROM Client C

inner join Booking B on B.ClientID=C.ID

Where ClientID = '594861'

Group by C.ID

Answer 1

问题出在我的小组旁边！

Select
C.ID,
COUNT(Distinct B.ID)AS 'Total bookings'

FROM Client C

inner join Booking B on B.ClientID=C.ID

Where ClientID = '594861'

Group by C.ID