显示序列号根据表中的数据数量显示月份

Question

我想以 MON / Serial_No 格式显示优惠券号码。 我有保存在表格中的凭证日期，我想从凭证日期显示月份，并使用序列号显示 优惠券无格式

例如： 如果JAN月有5条记录，则显示JAN / 1，JAN / 2，JAN / 3，JAN / 4，JAN / 5 如果FEB月有3条记录，则显示FEB / 1，FEB / 2，FEB / 3

这是我的代码/查询

SELECT
UPPER(LEFT(DATENAME(MONTH, Cust_Payment.Date_Of_Payment), 3)) as 
'Voucher_No',
Cust_Payment.Date_Of_Payment as 'Voucher_Date'
from Customer_Payments Cust_Payment

查询输出：

请帮忙。 提前谢谢。

Answer 1

试试这个

SELECT
     (
      UPPER(LEFT(DATENAME(MONTH, Cust_Payment.Date_Of_Payment), 3)) +
      '/' +
      CONVERT(varchar(10),row_number() over (partition by MONTH(Cust_Payment.Date_Of_Payment) order by Cust_Payment.Date_Of_Payment))
     )as 'Voucher_No',
     Cust_Payment.Date_Of_Payment as 'Voucher_Date'
from Customer_Payments Cust_Payment

Answer 2

试试这个

(UPPER(LEFT(DATENAME(MONTH, Cust_Payment.Date_Of_Payment), 3)) +'/' +
 CONVERT(varchar(10),row_number() over (partition by MONTH(Cust_Payment.Date_Of_Payment) order by Cust_Payment.Date_Of_Payment)))as 'Voucher_No2',