创建包含“选项”子句的视图答案

【问题标题】：Create view with the clause "option" included创建包含“选项”子句的视图
【发布时间】：2016-12-28 13:21:35
【问题描述】：

我正在尝试使用以下 sql 创建视图

   create view v_month_days
   as
   with C(TheDate) as
   (
      select CAST('01/01/2014' AS DATETIME)
      union all
      select dateadd(day, 1, C.TheDate)
      from C
      where C.TheDate < CONVERT(VARCHAR (8), (DATEADD(yy, DATEDIFF(yy,0,getdate()) + 1, -1)),112)
   )
   select
     cast(dateadd(month, datediff(month, 0, C.TheDate), 0) as date) as Month,
     count(*) as DayCount
   from C
   group by dateadd(month, datediff(month, 0, C.TheDate), 0)
   option (maxrecursion 0);

但我收到以下消息：

“消息 156，级别 15，状态 1，过程 v_month_days，第 15 行 [批处理开始行 0] 关键字“选项”附近的语法不正确”

我还有什么其他选择？

【问题讨论】：

标签： sql-server tsql view

【解决方案1】：

首先创建视图，不要使用Option 语句。

create view v_month_days
    as
    with C(TheDate) as
    (
      select CAST('01/01/2014' AS DATETIME)
      union all
      select dateadd(day, 1, C.TheDate)
      from C
      where C.TheDate < CONVERT(VARCHAR (8), (DATEADD(yy, DATEDIFF(yy,0,getdate()) + 1, -1)),112)
      )
     select cast(dateadd(month, datediff(month, 0, C.TheDate), 0) as date) as Month,
   count(*) as DayCount
   from C
    group by dateadd(month, datediff(month, 0, C.TheDate), 0)

然后当您从视图中选择时，使用Option 语句。

Select Month, DayCount From v_month_days
Option (maxrecursion 0);

【讨论】：