题目内容
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[单选题]
数据库中存在Orders（OrderDate，OrderPrice，Customer）表，其中OrderDate为订单日期，OrderPrice为订单金额，Customer为客户，现在要查找出订单总金额少于2000的客户，则可以使用哪条SQL语句（）
A.SELECT Customer,SUM（OrderPrice）from Orders WHERE SUM（OrderPrice）<2000 GROUP BY Customer
B.SELECT Customer,COUNT（OrderPrice）from Orders GROUP BY Customer HAVING COUNT（OrderPrice）<2000
C.SELECT Customer,COUNT（OrderPrice）from Orders HAVING COUNT（OrderPrice）<2000 GROUP BY Customer
D.SELECT Customer,SUM（OrderPrice）from Orders GROUP BY Customer HAVING SUM（OrderPrice）<2000
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