从今天开始选择大于5年前的所有年份

Question

 a          b
 1          2009
 2          2007
 3          2006
 4          2010
 5          2011

How I will select all years that greater than 5 years ago from year today?

So it would be like 2013(year today) - 5 = 2008
 a          b
 1          2009
 4          2010
 5          2011

I tried this:

select * from table1 where b > CURRENT_TIMESTAMP - 5

I use smallint as datatype of column b instead of date because I will only store the year. Is it safe to use small int for storing year?

Answer 1

您接近：

select * from table1 where b > YEAR(CURRENT_TIMESTAMP) - 5

Answer 2

select * from table1 where b > DATEADD(YEAR,-5,GETDATE())

应该也可以