Sql 如何比较存储过程中while循环中的时间？

请帮我这个忙，我一直在做条件工作，得到的时间只有24小时以内

所以我有类似的东西。谁能帮我一下，或者告诉我条件是否正确

my@DisplayStartTime=11:00PM

基本上我的@nextStartTime=11:00PM

以下是示例：

---

如果要在时间段[@StartDate，@EndDate]内生成所有日期时间值，则可以使用：

然后是一个简单的SELECT语句

DECLARE @StartDate DATETIME2(0), @EndDate DATETIME2(0), @Frequency TINYINT
SELECT  @StartDate = '2015-04-17 11:00:00',
        @EndDate = '2015-04-17 11:15:00',
        @Frequency = 2; -- Minutes

SELECT  n.Num, 
        DATEADD(MINUTE, n.Num*@Frequency, @StartDate) AS RangeStart
        /*,
        CASE 
            WHEN DATEADD(MINUTE, (n.Num + 1)*@Frequency, @StartDate) > @EndDate
            THEN @EndDate
            ELSE DATEADD(MINUTE, (n.Num + 1)*@Frequency, @StartDate)
        END AS RangeEnd
        */
FROM    dbo.Numbers n
WHERE   n.Num <= DATEDIFF(MINUTE, @StartDate, @EndDate) / @Frequency
/*
Num         RangeStart                  RangeEnd
----------- --------------------------- ---------------------------
0           2015-04-17 11:00:00         2015-04-17 11:02:00
1           2015-04-17 11:02:00         2015-04-17 11:04:00
2           2015-04-17 11:04:00         2015-04-17 11:06:00
3           2015-04-17 11:06:00         2015-04-17 11:08:00
4           2015-04-17 11:08:00         2015-04-17 11:10:00
5           2015-04-17 11:10:00         2015-04-17 11:12:00
6           2015-04-17 11:12:00         2015-04-17 11:14:00
7           2015-04-17 11:14:00         2015-04-17 11:15:00
*/

---

我相信你不用光标也能做到这一点。你能告诉我们你想做什么吗？你能提供样本数据和预期结果吗？哦，我需要一个游标来循环。因此，如果我在@intflag上做点什么，它基本上可以正常工作。我们可以得到样本数据吗？你想要什么样的准确输出？样本数据已经编辑过了..这就是我所期望的。我需要一个循环在今天晚上11点到明天晚上11点之间的条件。我们可以这样做吗？可能重复

SET NOCOUNT ON
GO
-- DROP TABLE dbo.Numbers
CREATE TABLE dbo.Numbers (
    Num INT IDENTITY(0,1), 
    CONSTRAINT PK_Numbers_Num PRIMARY KEY (Num)
);
GO
-- It generates all values from 0 to 9999
INSERT dbo.Numbers DEFAULT VALUES 
GO 10000 -- You can insert more numbers if diff. between those two date/time values is greather than 13 days (I used a frecv. of 2 minutes to computes this maximum limit)

DECLARE @StartDate DATETIME2(0), @EndDate DATETIME2(0), @Frequency TINYINT
SELECT  @StartDate = '2015-04-17 11:00:00',
        @EndDate = '2015-04-17 11:15:00',
        @Frequency = 2; -- Minutes

SELECT  n.Num, 
        DATEADD(MINUTE, n.Num*@Frequency, @StartDate) AS RangeStart
        /*,
        CASE 
            WHEN DATEADD(MINUTE, (n.Num + 1)*@Frequency, @StartDate) > @EndDate
            THEN @EndDate
            ELSE DATEADD(MINUTE, (n.Num + 1)*@Frequency, @StartDate)
        END AS RangeEnd
        */
FROM    dbo.Numbers n
WHERE   n.Num <= DATEDIFF(MINUTE, @StartDate, @EndDate) / @Frequency
/*
Num         RangeStart                  RangeEnd
----------- --------------------------- ---------------------------
0           2015-04-17 11:00:00         2015-04-17 11:02:00
1           2015-04-17 11:02:00         2015-04-17 11:04:00
2           2015-04-17 11:04:00         2015-04-17 11:06:00
3           2015-04-17 11:06:00         2015-04-17 11:08:00
4           2015-04-17 11:08:00         2015-04-17 11:10:00
5           2015-04-17 11:10:00         2015-04-17 11:12:00
6           2015-04-17 11:12:00         2015-04-17 11:14:00
7           2015-04-17 11:14:00         2015-04-17 11:15:00
*/