Question

我需要选择当月只有付款日期的记录，因此历史上不会有任何其他记录，所以如果有人在这个月付款但在上个月付款，则不会返回

我很确定我会因为没有把它弄清楚而自责......

Answer 1

declare @currentMonth int, @currentYear
select @currentMonth = MONTH(GETDATE()), @currentYear = YEAR(GETDATE())

select * from your_table 
where MONTH(paymentDate) = @currentMonth and YEAR(paymentDate) = @currentYear 
and id not in 
     (select id from your_table where MONTH(paymentDate) < @currentMonth and 
      YEAR(paymentDate) == @currentYear OR YEAR(paymentDate) != @currentYear)

Answer 2

您可以尝试关注相关查询：

declare @ms date, @me date

set @ms = getdate()
set @ms = dateadd(day, 1-datepart(day, @ms), @ms)
set @me = dateadd(month, 1, @ms)

select t.*
from TableName t
where t.PaymentDate >= @ms and t.PaymentDate < @me
    and not exists (
        select 1 from TableName t2
        where t2.PayerID = t.PayerID and t2.PaymentDate < @ms
    )

仅选择新的活动日期

2 个答案: