Sql server 在SQL递归中使用MAX（Date）值

我有一个SQL查询，它根据从多个表中选择的MinDate和MaxDate执行递归。但当我尝试运行查询时，在递归公共表表达式“ctedaterange”的递归部分不允许使用GROUP BY、HAVING或AGGRATE函数。例外我也尝试过使用Top 1日期，但仍然没有希望

SQL查询

最重要的是，我需要将它包装到我的SQL视图中。对我问题的任何帮助都将不胜感激

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谢谢，

您可以将聚合移动到额外的cte，因此这可能是您想要的：

ALTER VIEW [dbo].[CYExtraction] 
  (PK_Date, [Month], [Quarter], [HalfYear], [Year], [DateName])
AS
WITH cteAllItems (mindates, maxdates) AS (
  SELECT MIN(CreatedOn), MAX(CreatedOn) FROM Items
  UNION ALL
  SELECT MIN(CreatedOn), MAX(CreatedOn) FROM Bibs
  UNION ALL
  SELECT MIN(CreatedOn), MAX(CreatedOn) FROM Porders
),
   ctedaterange (Dates, MaxDate) AS (
  SELECT MIN(mindates), MAX(maxdates) 
  FROM cteAllItems
  UNION ALL
  SELECT DATEADD(day, 1, Dates), MaxDate 
  FROM ctedaterange
  WHERE DATEADD(day, 1, Dates) <= MaxDate
)
SELECT
  Dates AS PK_Date,
  DATENAME(MONTH, Dates) + N' ' + DATENAME(YEAR, Dates),
  N'Q' + DATENAME(QUARTER, Dates) + N' ' + DATENAME(YEAR, Dates),
  N'HY' + CAST((MONTH(Dates)-1)/6+1 AS nvarchar(1)) + N' ' + DATENAME(YEAR, Dates),
  YEAR(Dates),
  CONVERT(nvarchar(10), DATEADD(MONTH, DATEDIFF(MONTH, 0, Dates), 0), 105)
FROM ctedaterange

GO

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你为什么选择一分钟中的一分钟？你认为这是在完成什么？我敢打赌这可能是这个查询中许多错误中的第一个。很难从代码中推断出您的意图。

ALTER VIEW [dbo].[CYExtraction] 
  (PK_Date, [Month], [Quarter], [HalfYear], [Year], [DateName])
AS
WITH cteAllItems (mindates, maxdates) AS (
  SELECT MIN(CreatedOn), MAX(CreatedOn) FROM Items
  UNION ALL
  SELECT MIN(CreatedOn), MAX(CreatedOn) FROM Bibs
  UNION ALL
  SELECT MIN(CreatedOn), MAX(CreatedOn) FROM Porders
),
   ctedaterange (Dates, MaxDate) AS (
  SELECT MIN(mindates), MAX(maxdates) 
  FROM cteAllItems
  UNION ALL
  SELECT DATEADD(day, 1, Dates), MaxDate 
  FROM ctedaterange
  WHERE DATEADD(day, 1, Dates) <= MaxDate
)
SELECT
  Dates AS PK_Date,
  DATENAME(MONTH, Dates) + N' ' + DATENAME(YEAR, Dates),
  N'Q' + DATENAME(QUARTER, Dates) + N' ' + DATENAME(YEAR, Dates),
  N'HY' + CAST((MONTH(Dates)-1)/6+1 AS nvarchar(1)) + N' ' + DATENAME(YEAR, Dates),
  YEAR(Dates),
  CONVERT(nvarchar(10), DATEADD(MONTH, DATEDIFF(MONTH, 0, Dates), 0), 105)
FROM ctedaterange

GO