SQL Server建立日期维度表

一、常见日期维度查询语句

--data当前日期 2020-02-02 
select CONVERT(varchar(10),GETDATE(),120)

--年份
 SELECT CAST(YEAR(GETDATE()) AS int)

--年季
 SELECT YEAR(GETDATE())*10 + CEILING(MONTH(GETDATE())/3.0)

 --年月
 SELECT YEAR(GETDATE())*100 + MONTH(GETDATE())

 --年周
 SELECT YEAR(GETDATE())*100 + DATEPART(WK,GETDATE())

 --季度
 SELECT CEILING(MONTH(GETDATE())/3.0)

 --月
 SELECT MONTH(GETDATE())

 --周
 SELECT DATEPART(WK,GETDATE())

 --天
 SELECT DAY(GETDATE())

 --年度最小日期
select dateadd(year, datediff(year, 0, GETDATE()), 0)

 --年度最大日期(思路：下年的第一天减去一天)
 select dateadd(year, datediff(year, 0, dateadd(year, 1, GETDATE())), -1)

 --季度最小日期
  SELECT DATEADD(qq, DATEDIFF(qq,0,getdate()), 0) 

 --季度最大日期
  SELECT CONVERT(datetime,CONVERT(char(8),DATEADD(Month,DATEPART(Quarter,GETDATE())*3-Month(GETDATE()),GETDATE()),120)+CASE WHEN DATEPART(Quarter,GETDATE()) in(1,4)THEN'31'ELSE'30'END)

 --月度最小日期
 select dateadd(month, datediff(month, 0, GETDATE()), 0)

 --月度最大日期(思路：下月的第一天减去一天)
 select dateadd(month, datediff(month, 0, dateadd(month, 1, GETDATE())), -1)

 --周第一天
 --设置周一为每周的第一天（sql server默认周日为每周第一天）
 SET DATEFIRST 1 
 SELECT dateadd(day,1-(datepart(weekday,GETDATE())),GETDATE())

 --周最后一天(周的第一天加6)
 SELECT DATEADD(day,1-(datepart(weekday,GETDATE()))+6,GETDATE())

二、建立日期维度表

CREATE TABLE [dbo].[d_time](
    [id] [INT] NOT NULL,
    [date] [DATETIME] NOT NULL,
    [name] [NVARCHAR](11) NULL,
    [year] [INT] NOT NULL,
    [year_quarter] [INT] NOT NULL,
    [year_month] [INT] NOT NULL,
    [year_week] [INT] NOT NULL,
    [quarter] [INT] NOT NULL,
    [month] [INT] NOT NULL,
    [week] [INT] NOT NULL,
    [day] [INT] NOT NULL,
    [year_begin_date] [DATE] NOT NULL,
    [year_end_date] [DATE] NOT NULL,
    [quarter_begin_date] [DATE] NOT NULL,
    [quarter_end_date] [DATE] NOT NULL,
    [month_begin_date] [DATE] NOT NULL,
    [month_end_date] [DATE] NOT NULL,
    [week_begin_date] [DATE] NOT NULL,
    [week_end_date] [DATE] NOT NULL,
 CONSTRAINT [PK_d_time] PRIMARY KEY CLUSTERED 
(
    [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

三、维护日期维度存储过程

CREATE ALTER PROCEDURE [dbo].[sp_insert_time] @type INT --功能类型："0"增量，"1"全量
AS
SET NOCOUNT ON;
BEGIN
    DECLARE @data DATETIME; --当前日期
    DECLARE @begin_time DATETIME; --起始时间
    DECLARE @end_time DATETIME; --截止日期
    --设置周一为每周的第一天
    SET DATEFIRST 1;

    --获取当前日期(2021-11-11 00:00:00.000)
    SET @data = CAST(CONVERT(VARCHAR(8), GETDATE(), 112) AS DATETIME);
    --设置截止时间（当天日期向后追加一年）
    SET @end_time = DATEADD(yy, 1, @data);

    --判断功能类型-增量
    IF @type = 0
    BEGIN
        --日期增量(如果表中最大日期小于明年今日)
        IF(SELECT MAX(date) FROM dbo.d_time) < @end_time
        BEGIN
            --设置起始时间(表中存在最大日期+1天)
            SET @begin_time = DATEADD(DAY,1,(SELECT MAX(date) FROM dbo.d_time));

            --插入开始
            WHILE @begin_time <= @end_time
            BEGIN
            SET @data = @begin_time;
            INSERT INTO [dbo].[d_time]
            (
                [id],
                [date],
                [name],
                [year],
                [year_quarter],
                [year_month],
                [year_week],
                [quarter],
                [month],
                [week],
                [day],
                [year_begin_date],
                [year_end_date],
                [quarter_begin_date],
                [quarter_end_date],
                [month_begin_date],
                [month_end_date],
                [week_begin_date],
                [week_end_date]
            )
            VALUES
            (cast(CONVERT(varchar(12),@data,112) AS INT )
           ,CONVERT(varchar(10),@data,120)
           ,CAST(YEAR(@data) AS VARCHAR)+'年'+RIGHT((100+ MONTH(@data)),2)+'月'+RIGHT(100+DAY(@data),2)+'日'
           ,CAST(YEAR(@data) AS int)
           ,YEAR(@data)*10 + CEILING(MONTH(@data)/3.0)
           ,YEAR(@data)*100 + MONTH(@data)
           ,YEAR(@data)*100 + DATEPART(WK,@data)
           ,CEILING(MONTH(@data)/3.0)
           ,MONTH(@data)
           ,DATEPART(WK,@data)
           ,DAY(@data)
           ,dateadd(year, datediff(year, 0, @data), 0)
           ,dateadd(year, datediff(year, 0, dateadd(year, 1, @data)), -1)
           ,DATEADD(qq, DATEDIFF(qq,0,getdate()), 0) 
           ,CONVERT(datetime,CONVERT(char(8),DATEADD(Month,DATEPART(Quarter,@data)*3-Month(@data),@data),120)+CASE WHEN DATEPART(Quarter,@data) in(1,4)THEN'31'ELSE'30'END)
           ,dateadd(month, datediff(month, 0, @data), 0)
           ,dateadd(month, datediff(month, 0, dateadd(month, 1, @data)), -1)
           ,dateadd(day,1-(datepart(weekday,@data)),@data)
           ,DATEADD(day,1-(datepart(weekday,@data))+6,@data));

           SET @begin_time = DATEADD(DAY, 1, @begin_time);
           END;
        END;
    END;


    ----判断功能类型-全量
    IF @type = 1
    BEGIN
        --全量前清空日期维度表
        TRUNCATE TABLE [dbo].[d_time]
        --先插入一条null数据
        BEGIN
        SET @data ='1900-01-01 00:00:00.000';
            INSERT INTO [dbo].[d_time]
            (
                [id],
                [date],
                [name],
                [year],
                [year_quarter],
                [year_month],
                [year_week],
                [quarter],
                [month],
                [week],
                [day],
                [year_begin_date],
                [year_end_date],
                [quarter_begin_date],
                [quarter_end_date],
                [month_begin_date],
                [month_end_date],
                [week_begin_date],
                [week_end_date]
            )
            VALUES
             (cast(CONVERT(varchar(12),@data,112) AS INT )
           ,CONVERT(varchar(10),@data,120)
           ,CAST(YEAR(@data) AS VARCHAR)+'年'+RIGHT((100+ MONTH(@data)),2)+'月'+RIGHT(100+DAY(@data),2)+'日'
           ,CAST(YEAR(@data) AS int)
           ,YEAR(@data)*10 + CEILING(MONTH(@data)/3.0)
           ,YEAR(@data)*100 + MONTH(@data)
           ,YEAR(@data)*100 + DATEPART(WK,@data)
           ,CEILING(MONTH(@data)/3.0)
           ,MONTH(@data)
           ,DATEPART(WK,@data)
           ,DAY(@data)
           ,dateadd(year, datediff(year, 0, @data), 0)
           ,dateadd(year, datediff(year, 0, dateadd(year, 1, @data)), -1)
           ,DATEADD(qq, DATEDIFF(qq,0,getdate()), 0) 
           ,CONVERT(datetime,CONVERT(char(8),DATEADD(Month,DATEPART(Quarter,@data)*3-Month(@data),@data),120)+CASE WHEN DATEPART(Quarter,@data) in(1,4)THEN'31'ELSE'30'END)
           ,dateadd(month, datediff(month, 0, @data), 0)
           ,dateadd(month, datediff(month, 0, dateadd(month, 1, @data)), -1)
           ,dateadd(day,1-(datepart(weekday,@data)),@data)
           ,DATEADD(day,1-(datepart(weekday,@data))+6,@data));
        END

        --正式数据插入开始
        SET @begin_time = '2018-01-01 00:00:00.000';
        WHILE @begin_time < DATEADD(DAY, 1, @end_time)
        BEGIN
            SET @data = @begin_time;
            --插入开始
            INSERT INTO [dbo].[d_time]
            (
                [id],
                [date],
                [name],
                [year],
                [year_quarter],
                [year_month],
                [year_week],
                [quarter],
                [month],
                [week],
                [day],
                [year_begin_date],
                [year_end_date],
                [quarter_begin_date],
                [quarter_end_date],
                [month_begin_date],
                [month_end_date],
                [week_begin_date],
                [week_end_date]
            )
            VALUES
             (cast(CONVERT(varchar(12),@data,112) AS INT )
           ,CONVERT(varchar(10),@data,120)
           ,CAST(YEAR(@data) AS VARCHAR)+'年'+RIGHT((100+ MONTH(@data)),2)+'月'+RIGHT(100+DAY(@data),2)+'日'
           ,CAST(YEAR(@data) AS int)
           ,YEAR(@data)*10 + CEILING(MONTH(@data)/3.0)
           ,YEAR(@data)*100 + MONTH(@data)
           ,YEAR(@data)*100 + DATEPART(WK,@data)
           ,CEILING(MONTH(@data)/3.0)
           ,MONTH(@data)
           ,DATEPART(WK,@data)
           ,DAY(@data)
           ,dateadd(year, datediff(year, 0, @data), 0)
           ,dateadd(year, datediff(year, 0, dateadd(year, 1, @data)), -1)
           ,DATEADD(qq, DATEDIFF(qq,0,getdate()), 0) 
           ,CONVERT(datetime,CONVERT(char(8),DATEADD(Month,DATEPART(Quarter,@data)*3-Month(@data),@data),120)+CASE WHEN DATEPART(Quarter,@data) in(1,4)THEN'31'ELSE'30'END)
           ,dateadd(month, datediff(month, 0, @data), 0)
           ,dateadd(month, datediff(month, 0, dateadd(month, 1, @data)), -1)
           ,dateadd(day,1-(datepart(weekday,@data)),@data)
           ,DATEADD(day,1-(datepart(weekday,@data))+6,@data));

            SET @begin_time = DATEADD(DAY, 1, @begin_time);
        END;
    END;
END;