如何在sql server中获取当前/今天的日期数据

Question

如何编写查询以获取今天的日期数据SQL server？

select * from tbl_name where date = <Todays_date>

Answer 1

正确答案取决于您的确切类型datecolumn.假设它是类型Date:

select * from tbl_name 
where datecolumn = cast(getdate() as Date)

如果是DateTime:

select * from tbl_name 
where cast(datecolumn as Date) = cast(getdate() as Date)

Answer 2

似乎 Mitch Wheat 的回答不是sargable，虽然我不确定这是真的。

请注意：DATEDIFF()LHS 上的a （或其他计算）不是 Sargable，而原样Cast(x to Date)。

SELECT * 
FROM tbl_name 
WHERE date >= cast(getdate() as date)
and date < cast(getdate()+1 as date)