Question

我有客户预订表，其中有多个客户也有一个客户可以有多个订单，所以从该表我必须找到客户的当前或活动订单。有两列从日期和到目前为止。我想要激活客户的跟踪订单并希望客户订单的回答计数有效。

Answer 1

试试这个

position: relative

Answer 2

使用Select Case和Between

Select
      Order_id,Customer_id,
      Case When CURDATE() BETWEEN FromDate And ToDate Then 'Active' Else 'Inactive' End as [Status] 
From Order_table

<强>更新

Select 
      Count(*) as Total,Customer_id 
From 
     Ordertable 
Where 
      CURDATE() BETWEEN FromDate And ToDate And Customer_id = custid
Group By Customer_id

我使用Group By来避免重复显示相同的数据

如何找到当前日期介于Fromdate和todate之间

2 个答案: