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我试图用一个case语句设置变量值来确定财政年度,取决于一个月,但我得到财政年度Null值返回:牛逼SQL的使用情况下,当在参数
declare
@Costcentre varchar(50)
,@dt date
,@dty int
,@dtm int
select @Costcentre = 'CAM'
SELECT @dt = '2012-09-30'
select @dtm = DATEPART(month,@dt)
select
@dty = case when @dtm between 4 and 12 then DATEPART(year,@dt) + 1 end
,@dty = case when @dtm between 1 and 3 then DATEPART(year,@dt) end
select @dty