TSQL MAXRECURSION在CTE

Question

我得到這個錯誤：

The maximum recursion 100 has been exhausted before statement completion

當我運行這個功能：

WITH allDays AS (

     SELECT @DateEarly AS date 

     UNION ALL 

     SELECT DATEADD(dd, 1, date) as date 
     FROM allDays s 
     WHERE DATEADD(dd, 1, date) <= @DateLate 


    ) 
    SELECT * 
    from allDays 
    where dbo.isFestivo(date)>0 

我試圖追加此選項：

OPTION (MAXRECURSION 200); 

，但我得到「選項」字之前的錯誤156。 你知道爲什麼嗎？

Answer 1

你可能會把選項放在錯誤的地方。它需要在哪裏之後

WITH allDays AS (
    SELECT @DateEarly AS date 
    UNION ALL 
    SELECT DATEADD(dd, 1, date) as date 
    FROM allDays s 
    WHERE DATEADD(dd, 1, date) <= @DateLate 
) 
SELECT * 
from allDays 
where dbo.isFestivo(date)>0 
option (maxrecursion 200); 

但是試試這個。它會更快...

select DATEADD(d, number, @dateearly) as [date] 
from master..spt_values 
where type='p' 
and number<=datediff(d,@dateearly,@datelate) 
and dbo.isFestivo(date)>0