我看到一个或两个主题在询问相反的问题（将1min时间戳转换为5min或其他时间戳间隔）。但是我完全不知道对此进行编程的想法。
这是我的输入表：
timestamp Food Beverage
15:00:00 Pizza Coke
15:05:00 Burger Coke
15:10:00 Hotdog Pepsi
… … …
这将是我想要的输出：
timestamp Food Beverage
15:00:00 Pizza Coke
15:01:00 Pizza Coke
15:02:00 Pizza Coke
15:03:00 Pizza Coke
15:04:00 Pizza Coke
15:05:00 Burger Coke
15:06:00 Burger Coke
15:07:00 Burger Coke
15:08:00 Burger Coke
15:09:00 Burger Coke
15:10:00 Hotdog Pepsi
15:11:00 Hotdog Pepsi
… … …
谢谢！
答案 0 :(得分：3)
最简单的方法是使用start = input("Would you like to encrypt(1) or decrypt(2) your password?: ")
if start == "encrypt" or "1":
print("Enter the password you want to encrypt: ")
elif start == "decrypt" or "2":
print("Enter the password you want to decrypt: ")
：
cross join您也可以使用明确的select dateadd(minute, v.m, timestamp) as timestamp,
food, beverage
from t cross join
(values (0), (1), (2), (3), (4)) v(m);
/ select来做到这一点：
union all答案 1 :(得分：0)
您可以使用 DATEADD 。参数输入 N 表示分钟。
ROW_NUMBER 将增加每行的时间戳。
DECLARE @interval varchar(10) = 5
DROP TABLE IF EXISTS #data
SELECT timestamp='15:00:00',Food='Pizza',Beverage='Coke'
INTO #data
UNION ALL SELECT timestamp='15:05:00',Food='Burger',Beverage='Coke'
UNION ALL SELECT timestamp='15:10:00',Food='Pizza',Beverage='Pepsi'
DROP TABLE IF EXISTS #TAB
CREATE TABLE #TAB (id int)
EXEC ('INSERT INTO #TAB
SELECT TOP '+@interval+ ' ROW_NUMBER() OVER(ORDER BY name) FROM sys.columns')
SELECT timestamp=CAST(DATEADD(n,ROW_NUMBER() OVER (PARTITION BY timestamp,food,beverage ORDER BY Food),timestamp) as time) , Food,Beverage
FROM #data
CROSS JOIN #TAB
ORDER BY 1
输出将是：
+------------------+--------+----------+
| timestamp | Food | Beverage |
+------------------+--------+----------+
| 15:01:00.0000000 | Pizza | Coke |
| 15:02:00.0000000 | Pizza | Coke |
| 15:03:00.0000000 | Pizza | Coke |
| 15:04:00.0000000 | Pizza | Coke |
| 15:05:00.0000000 | Pizza | Coke |
| 15:06:00.0000000 | Burger | Coke |
| 15:07:00.0000000 | Burger | Coke |
| 15:08:00.0000000 | Burger | Coke |
| 15:09:00.0000000 | Burger | Coke |
| 15:10:00.0000000 | Burger | Coke |
| 15:11:00.0000000 | Pizza | Pepsi |
| 15:12:00.0000000 | Pizza | Pepsi |
| 15:13:00.0000000 | Pizza | Pepsi |
| 15:14:00.0000000 | Pizza | Pepsi |
| 15:15:00.0000000 | Pizza | Pepsi |
+------------------+--------+----------+