女士Access查询

Question

I am trying to find have to filter my query, in order to show me result from this month and the last month. 我试图查找必须过滤我的查询，以便向我显示本月和上个月的结果。

WHERE t.AllDate Between Date() - 60 and Date()

My code so far is this, but it roll back 60 days. 到目前为止，我的代码是这样，但是它可以回滚60天。

I need to have result for all the last month. 我需要最后一个月的结果。

Thank you. 谢谢。

Answer 1

这样可能更简单：

WHERE DateDiff("m", t.AllDate, Date()) < 2

Answer 2

If the question is 如果问题是

How to get the date of the first day of the previous month ? 如何获得前一个月的第一天的日期？

You can do this in MS Access SQL : 您可以在MS Access SQL中执行此操作：

DateSerial(Year(DateAdd('m',-1,Date())), Month(DateAdd('m',-1,Date())),1)

Right now it returns 1/04/2018 现在它返回1/04/2018

Your query becomes : 您的查询变为：

WHERE t.AllDate Between DateSerial(Year(DateAdd('m',-1,Date())), Month(DateAdd('m',-1,Date())),1) 
                    and Date()

With this trick you will always get the right year and month, even if you run it in January. 使用此技巧，即使您在一月份运行它，也将始终获得正确的年份和月份。