摘要： 需要根据时间进行查询这段时间洗了多少次车SELECT wx.UserName AS '用户名称', wx.Telephone AS '手机号', IFNULL(TotalCarCount,0) AS '共洗车次数', IFNULL(BigCarCount,0) AS '大车洗车次数', IFNULL(SmallCarCount,0) AS '小车洗车次数', IFNULL(count(Was... 阅读全文