t-sql月底插入

Question

我创建了两个名为TSALESFACT和DimDate的数据库表。 TSALESFACT表包含每月销售目标值。 DimTime包含从2005年1月1日开始的日期值。

CREATE TABLE [dbo].[TSalesFact](
[DateID] [smalldatetime] NULL,
[YearID] [int] NOT NULL,
[MonthID] [int] NOT NULL,
[SeasonID] [char](10) NOT NULL,
[DepartmentID] [char](10) NOT NULL,
[SalesAmount] [int] NOT NULL

）

CREATE TABLE [dbo].[dim_Date](
[ID] [int] NOT NULL,
[Date] [datetime] NOT NULL,
[Day] [char](2) NOT NULL,
[DaySuffix] [varchar](4) NOT NULL,
[DayOfWeek] [varchar](9) NOT NULL,
[DOWInMonth] [tinyint] NOT NULL,
[DayOfYear] [int] NOT NULL,
[WeekOfYear] [tinyint] NOT NULL,
[WeekOfMonth] [tinyint] NOT NULL,
[Month] [char](2) NOT NULL,
[MonthName] [varchar](9) NOT NULL,
[Quarter] [tinyint] NOT NULL,
[QuarterName] [varchar](6) NOT NULL,
[Year] [char](4) NOT NULL,
[StandardDate] [varchar](10) NULL,
[HolidayText] [varchar](50) NULL)

我想将这些销售目标值插入名为DailySalesTargets的新表中。 但是，此操作的主要目的是将目标销售额写入每个月末的日期。相关月份的所有日期值均为零。我希望这个操作的结果集如下：

我怎样才能做到这一点？有什么想法吗？

Answer 1

我认为这就是你要做的事。

insert into [DailySalesTargets]([DateID],[YearID],[MonthID],
                                [SeasonID],[DepartmentID],[SalesAmount])
select d.[Date],d.[Year],d.[Month]
,dptSeason.[SeasonID],dptSeason.[DepartmentID]
,case when EOMONTH(d.[Date])=s.[DateID] then s.[SalesAmount] else 0 end as [SalesAmount]
from [dbo].[dim_Date] d
cross join (select distinct [DepartmentID],[SeasonID] from [dbo].[TSalesFact]) dptSeason
left join [dbo].[TSalesFact] s on d.[Date] = s.[DateID] 
and s.[DepartmentID]=dptSeason.[DepartmentID]
and s.[SeasonID]=dptSeason.[SeasonID]