統計每一個用戶的總購買數量.sql

 1, select   s.customer_id,Sum(s.buy_number) as SumCount  from   sellinfo  s   WHERE s.sellday>'2008-01-13' and s.sellday<'2008-05-31' group   by  s.customer_id having  Sum(s.buy_number) >8 2， sellinf

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