Question

我收到此错误：

最大递归100在声明之前已经用尽完成

当我运行此功能时：

    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

我尝试附加此选项：

OPTION (MAXRECURSION 200);

但是在“选项”字之前我得到一个错误156。你知道为什么吗？

Answer 1

你可能把选项放在了错误的地方。它需要在哪里

之后

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);

但试试这个。它会更快......

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

cte上的TSQL Maxrecursion

1 个答案: