日期维度（周一为每周第一天）

CREATE TABLE [dbo].[Dim_日期](
    [日期ID] [varchar](8) NOT NULL,
    [年] [int] NULL,
    [半年] [varchar](6) NULL,
    [季] [varchar](2) NULL,
    [月] [varchar](4) NULL,
    [周] [varchar](6) NULL,
    [星期] [varchar](6) NULL,
    [是否周末] [varchar](4) NULL,
    [日] [int] NULL,
 CONSTRAINT [PK_Dim_日期] PRIMARY KEY CLUSTERED 
(
    [日期ID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]

GO

SET DATEFIRST 1  --设置周一每周第一天，默认为7

DECLARE @BeginDate DATE;
SELECT @BeginDate = ‘2000-1-2‘;
WHILE @BeginDate <= ‘2016-12-31‘
  BEGIN
      INSERT INTO [Dim_日期]
      SELECT CONVERT(VARCHAR(8), @BeginDate, 112)  AS [日期ID],
             Year(@BeginDate)                      AS [年],
     CASE 
     when DATEPART(month, @BeginDate)<=6 then ‘上半年‘
     else ‘下半年‘ end as [半年],
             CASE 
               WHEN Datename (qq, @BeginDate) = ‘1‘ THEN ‘Q1‘
               WHEN Datename (qq, @BeginDate) = ‘2‘ THEN ‘Q2‘
               WHEN Datename (qq, @BeginDate) = ‘3‘ THEN ‘Q3‘
               ELSE ‘Q4‘
             END                                   AS [季],
             CASE
               WHEN Month(@BeginDate) = 1 THEN ‘01月‘
               WHEN Month(@BeginDate) = 2 THEN ‘02月‘
               WHEN Month(@BeginDate) = 3 THEN ‘03月‘
               WHEN Month(@BeginDate) = 4 THEN ‘04月‘
               WHEN Month(@BeginDate) = 5 THEN ‘05月‘
               WHEN Month(@BeginDate) = 6 THEN ‘06月‘
               WHEN Month(@BeginDate) = 7 THEN ‘07月‘
               WHEN Month(@BeginDate) = 8 THEN ‘08月‘
               WHEN Month(@BeginDate) = 9 THEN ‘09月‘
               WHEN Month(@BeginDate) = 10 THEN ‘10月‘
               WHEN Month(@BeginDate) = 11 THEN ‘11月‘
               ELSE ‘12月‘
             END                                   AS [月],
             CASE
               WHEN Datepart(WEEK, @BeginDate) < 10 THEN ‘第0‘ + CONVERT(VARCHAR(2), Datepart(WEEK, @BeginDate)) + ‘周‘
               ELSE ‘第‘ + CONVERT(VARCHAR(2), Datepart(WEEK, @BeginDate)) + ‘周‘
             END                                   AS [周],
             Datename(WeekDay, @BeginDate)         AS [星期],
             CASE
               WHEN Datepart(dw, @BeginDate) = ‘6‘ THEN ‘周末‘
               WHEN Datepart(dw, @BeginDate) = ‘7‘ THEN ‘周末‘
               ELSE ‘平时‘
             END                                   AS ‘是否周末‘,
             Day(@BeginDate)                       AS [日]
      SET @BeginDate = Dateadd(DAY, 1, @BeginDate);
  END;