检查两个日期之间的日期或sql中的NULL

Question

我希望check date中between two dates或NULL传递declare @fromDate date = null declare @toDate date = null select * from Mytable where date betweeen @fromDate and @toDate OR NULL (how to check for both parameters) 使用存储过程

码

{{1}}

我还有其他2个参数，所以不论日期结果如何都应该显示。 如果@todate和@fromDate为NULL

请帮忙。

Answer 1

尝试使用合并功能，如下所示

declare @fromDate date = null
declare @toDate date = null

select * from Mytable 
where date between coalesce(@fromDate,date) and coalesce(@toDate,date)

Answer 2

几乎将您的英语转换为SQL：

where (date is null or date betweeen @fromDate and @toDate)