MSSQL 生成日期

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-生成日期表

CREATE TABLE [dbo].[T_Calendar] (
   [time_id] [int] IDENTITY (1, 1) NOT NULL ,
   [the_date] [date] NULL ,
   [the_day] [nvarchar] (15) NULL ,
   [the_month] [nvarchar] (15) NULL ,
   [the_year] [smallint] NULL ,
   [day_of_month] [smallint] NULL ,
   [holiday_type] [int]    NULL
) ON [PRIMARY]

-- 再执行存储过程
DECLARE @WeekString varchar(12),
@dDate SMALLDATETIME,
@sMonth varchar(20),
@iYear smallint,
@iDayOfMonth smallint,
@iWeekOfYear smallint,
@iMonthOfYear smallint,
@sQuarter varchar(2),
@sSQL varchar(100),
@adddays int

SELECT @adddays = 1 --日期增量（可以自由设定）
SELECT @dDate = '01/01/2022 ' --开始日期

WHILE @dDate <= '12/31/2022 '    --结束日期
BEGIN

   SELECT @WeekString = DATENAME (dw, @dDate)
   SELECT @sMonth=DATENAME(mm,@dDate)
   SELECT @iYear= DATENAME (yy, @dDate)
   SELECT @iDayOfMonth=DATENAME (dd, @dDate)
   SELECT @iWeekOfYear= DATENAME (week, @dDate)
   SELECT @iMonthOfYear=DATEPART(month, @dDate)
   SELECT @sQuarter = 'Q ' +    CAST(DATENAME (quarter, @dDate)as varchar(1))

   INSERT INTO T_Calendar(the_date, the_day, the_month, the_year,
   day_of_month
   ) VALUES
   (@dDate, @WeekString, @sMonth, @iYear, @iDayOfMonth)
   SELECT @dDate = @dDate + @adddays
END
GO

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