要获得2个日期之间的差异

Question

我有2个约会.我想获得storedprocedure中两个日期之间的天数.

Answer 1

DateDiff函数应该做你需要的

declare @var1 Datetime
declare @var2 Datetime

set @var1 = '2009-04-01'
set @var2 = '2009-04-16'

SELECT datediff(day,@var1, @var2 )