如何在SQL Server中生成从给定开始日期到结束日期的5分钟间隔数据？

输出应为：

DECLARE @start DATETIME
DECLARE @end   DATETIME

SET @start = '2015-01-01 00:00:00';
SET @end = '2015-03-05 00:00:00';

---

递归CTE是一种简单的解决方案：

2015-01-01 00:05:00
2015-01-01 00:10:00
2015-01-01 00:15:00
2015-01-01 00:20:00
2015-01-01 00:25:00
.
.
.
till the end date

或者另一个：

with dates as (
      select @start as dte
      union all
      select dateadd(minute, 5, dte)
      from dates
      where dte < @end
     )
select *
from dates
option (maxrecursion 0);

---

CTE包含的数字范围为1到65536。然后，对于每个数字，我们将添加从@start date到@end date的数字*5分钟。

如果对助手函数打开。我经常使用参数驱动的表值函数

作为TVF，它很容易在交叉应用中使用

范例

返回

如果感兴趣的话，函数

---

我个人建议计算一下。它们比递归的公共表表达式快得多，因为它们不是RDBMS不擅长的递归表达式。尤其是当你有很多行的时候

CREATE FUNCTION [dbo].[tvf-Date-Range] (@R1 datetime,@R2 datetime,@Part varchar(10),@Incr int)
Returns Table
Return (
    with cte0(M)   As (Select 1+Case @Part When 'YY' then DateDiff(YY,@R1,@R2)/@Incr When 'QQ' then DateDiff(QQ,@R1,@R2)/@Incr When 'MM' then DateDiff(MM,@R1,@R2)/@Incr When 'WK' then DateDiff(WK,@R1,@R2)/@Incr When 'DD' then DateDiff(DD,@R1,@R2)/@Incr When 'HH' then DateDiff(HH,@R1,@R2)/@Incr When 'MI' then DateDiff(MI,@R1,@R2)/@Incr When 'SS' then DateDiff(SS,@R1,@R2)/@Incr End),
         cte1(N)   As (Select 1 From (Values(1),(1),(1),(1),(1),(1),(1),(1),(1),(1)) N(N)),
         cte2(N)   As (Select Top (Select M from cte0) Row_Number() over (Order By (Select NULL)) From cte1 a, cte1 b, cte1 c, cte1 d, cte1 e, cte1 f, cte1 g, cte1 h ),
         cte3(N,D) As (Select 0,@R1 Union All Select N,Case @Part When 'YY' then DateAdd(YY, N*@Incr, @R1) When 'QQ' then DateAdd(QQ, N*@Incr, @R1) When 'MM' then DateAdd(MM, N*@Incr, @R1) When 'WK' then DateAdd(WK, N*@Incr, @R1) When 'DD' then DateAdd(DD, N*@Incr, @R1) When 'HH' then DateAdd(HH, N*@Incr, @R1) When 'MI' then DateAdd(MI, N*@Incr, @R1) When 'SS' then DateAdd(SS, N*@Incr, @R1) End From cte2 )

    Select RetSeq = N+1
          ,RetVal = D 
     From  cte3,cte0 
     Where D<=@R2
)

---

解释一下这是什么？

DECLARE @start DATETIME = '2015-01-01 00:00:00';
DECLARE @end   DATETIME = '2015-03-05 00:00:00';

Select * 
  From [dbo].[tvf-Date-Range](@start,@end,'mi',5) 

RetSeq  RetVal
1       2015-01-01 00:00:00.000
2       2015-01-01 00:05:00.000
3       2015-01-01 00:10:00.000
4       2015-01-01 00:15:00.000
---
18143   2015-03-04 23:50:00.000
18144   2015-03-04 23:55:00.000
18145   2015-03-05 00:00:00.000

CREATE FUNCTION [dbo].[tvf-Date-Range] (@R1 datetime,@R2 datetime,@Part varchar(10),@Incr int)
Returns Table
Return (
    with cte0(M)   As (Select 1+Case @Part When 'YY' then DateDiff(YY,@R1,@R2)/@Incr When 'QQ' then DateDiff(QQ,@R1,@R2)/@Incr When 'MM' then DateDiff(MM,@R1,@R2)/@Incr When 'WK' then DateDiff(WK,@R1,@R2)/@Incr When 'DD' then DateDiff(DD,@R1,@R2)/@Incr When 'HH' then DateDiff(HH,@R1,@R2)/@Incr When 'MI' then DateDiff(MI,@R1,@R2)/@Incr When 'SS' then DateDiff(SS,@R1,@R2)/@Incr End),
         cte1(N)   As (Select 1 From (Values(1),(1),(1),(1),(1),(1),(1),(1),(1),(1)) N(N)),
         cte2(N)   As (Select Top (Select M from cte0) Row_Number() over (Order By (Select NULL)) From cte1 a, cte1 b, cte1 c, cte1 d, cte1 e, cte1 f, cte1 g, cte1 h ),
         cte3(N,D) As (Select 0,@R1 Union All Select N,Case @Part When 'YY' then DateAdd(YY, N*@Incr, @R1) When 'QQ' then DateAdd(QQ, N*@Incr, @R1) When 'MM' then DateAdd(MM, N*@Incr, @R1) When 'WK' then DateAdd(WK, N*@Incr, @R1) When 'DD' then DateAdd(DD, N*@Incr, @R1) When 'HH' then DateAdd(HH, N*@Incr, @R1) When 'MI' then DateAdd(MI, N*@Incr, @R1) When 'SS' then DateAdd(SS, N*@Incr, @R1) End From cte2 )

    Select RetSeq = N+1
          ,RetVal = D 
     From  cte3,cte0 
     Where D<=@R2
)

DECLARE @StartDate datetime2(0) = '20200401',
        @EndDate datetime2(0) = '20200501';

WITH N AS(
    SELECT N
    FROM (VALUES(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL))N(N)),
Tally AS(
    SELECT TOP ((DATEDIFF(MINUTE,@StartDate, @EndDate) / 5) +1)
           ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) -1 AS I
    FROM N N1, N N2, N N3, N N4, N N5) --up to 100,000 rows, add for cross joins for more rows
SELECT DATEADD(MINUTE, I*5, @StartDate) AS DateAndTime
FROM Tally;