Как исправить эту ошибку предложений "с"

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WITH Dates  AS
(
 SELECT VtoDate AS BusinessDay, 0 AS DaysCount from dual
 UNION ALL
 SELECT dateadd(dd,-1,BusinessDay) AS BusinessDay ,
 DaysCount + (CASE WHEN datepart(weekday, dateadd(dd,-1,BusinessDay)) NOT IN (7,1) THEN 1 ELSE 0 END) DaysCount
 FROM Dates 
 WHERE DaysCount < VnumberOfDays
)

SELECT  MIN(BusinessDay)into VfromDate FROM Dates;

Что я уже пробовал:

У меня есть эта ошибка

ORA-32039: recursive WITH clause must have column alias list

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WITH Dates (BusinessDay, DaysCount)  AS ...