牛逼的Sql案例的情况下，使用之间时where子句

Question

试图做一个WHERE BETWEEN与CASE WHEN：错误

SET @Qtr1 = datepart(MONTH,@dt1) 
select 
SUM(QtyInvoiced) as QtrCase 
,CustName 
,Town 
,Rep 
from SalesSumNew 
where 
FinMonth between 
case when @Qtr1 between '1' and '3' THEN '10' and '12' 
,case when @Qtr1 between '4' and '6' THEN '1' and '3' 
,case when @Qtr1 between '7' and '9' THEN '4' and '6' 
,case when @Qtr1 between '10' and '12' THEN '7' and '9' 
end 
group by CustName, Town, Rep 
order by Town 

结果：

Msg 156, Level 15, State 1, Line 57
Incorrect syntax near the keyword 'and'.

Answer 1

你不能做到这一点。

尝试用计算数学和MOD的范围：像...

where FinMonth between 
((((2+@qtr1)/3)+2)*3)%12+1, 
and 
((((2+@qtr1)/3)+2)*3+2)%12+1 

如果您FinMonth确实是一个字符串字段，那么“10”，“11”，“12”之间的所有'1'和'3'