Rounding of hours in sql queries - sql

Question

The values ​​you see below are loaded with a query and they are related to a time stamp. What they ask me to insert is a rounded value; up and down. Rounding must be done at minutes of 15 and 30.
If the round is set to 15 and the marking has been made at 7:59, it is rounded off to 8:00 if the marking is at 8:01 am rounded to 8:15 am, as do I implement this thing within this query?
Query:
select Data, string_agg(Ore, ' ') as Ore
from (
select FORMAT(DataCreazione, 'dd/MM/yyyy', 'it-IT') as Data,
CONCAT(DATEPART(HOUR,DataCreazione), ':', DATEPART(MINUTE, DataCreazione)) as
Ore
from Marcatura
where IdUtente = 2
and (Stato='Ingresso' or Stato='Uscita')
and cast(DataCreazione as DateTime)
between cast(CONVERT(VARCHAR(10), CONVERT(date, '10-11-18', 5), 23) as datetime)
and cast(CONVERT(VARCHAR(10), CONVERT(date, '10-11-19', 5), 23) as datetime)
) t
group by Data
order by CONVERT(datetime, Data, 105) desc
Values:
05/07/2019 -- 14:45 19:27
04/07/2019 -- 11:41 11:41
07/06/2019 -- 12:39
01/06/2019 -- 8:27 8:27 8:27 8:27
18/04/2019 -- 15:41 15:41
08/04/2019 -- 11:52 11:54
01/04/2019 -- 7:25
27/03/2019 -- 21:38 21:38
23/03/2019 -- 13:32 13:32
08/03/2019 -- 21:20 21:20
04/03/2019 -- 21:48 21:48
02/03/2019 -- 8:3 8:3
If the state is equal to < Ingresso > it is rounded up to the top if the status is < Uscita > is rounded down, for example 07:59 becomes 08:00 whereas if it is 17:44 it becomes 17:45

Answer 1

I would use timefromparts():
select dateadd(minute,
(case when datepart(minute, #time) not in (0, 15, 30, 45) then 15 else 0 end),
timefromparts(datepart(hour, #time),
15 * floor(datepart(minute, #time) / 15.0) % 60,
0, 0, 0
)
)
This is a little more complicated because you want to round up. So the idea is to round down and then selectively add 15 minutes.

Answer 2

The Logic is much more simple than described, perhaps.
Try this approach:
EDIT: Applied logic to your own query
select Data, string_agg(Ore, ' ') as Ore
from (
select FORMAT(DataCreazione, 'dd/MM/yyyy', 'it-IT') as Data,
CONCAT(
(Case
when Datepart(MINUTE, DataCreazione) > 45
then Datepart(hour, Datacreazione)+1
else Datepart(hour, Datacreazione)
end)
,':'
,(case
when DATEPART(MINUTE, DataCreazione) between 0 and 15 then '15'
when DATEPART(MINUTE, DataCreazione) between 16 and 30 then '30'
when DATEPART(MINUTE, DataCreazione) between 31 and 45 then '45'
else '00' end
)) as Ore
from Marcatura
where IdUtente = 2
and (Stato='Ingresso' or Stato='Uscita')
and DataCreazione
between cast(CONVERT(VARCHAR(10), CONVERT(date, '10-11-18', 5), 23) as datetime)
and cast(CONVERT(VARCHAR(10), CONVERT(date, '10-11-19', 5), 23) as datetime)
) t
group by Data
order by CONVERT(datetime, Data, 105) desc;
SQLFiddle here:
http://sqlfiddle.com/#!18/475202/1
http://sqlfiddle.com/#!18/23d16/13

Answer 3

this logic might help.
declare #time time
set #time = '14:41'
select case
when datepart(mi, #time) between 15 and 30 then dateadd(mi, -datepart(mi, #time) + 30, #time)
when datepart(mi, #time) between 16 and 45 then dateadd(mi, -datepart(mi, #time) + 45, #time)
when datepart(mi, #time) between 46 and 59 then dateadd(mi, -datepart(mi, #time) + 60, #time)
else dateadd(mi, -datepart(mi, #time), #time) end
applying this in your query.
select Data, string_agg(Ore, ' ') as Ore
from (
select FORMAT(DataCreazione, 'dd/MM/yyyy', 'it-IT') as Data,
CONVERT(VARCHAR(5), (case
when datepart(mi, CONVERT(VARCHAR(5),DataCreazione,108)) between 15 and 30 then dateadd(mi, -datepart(mi, CONVERT(VARCHAR(5),DataCreazione,108))) + 30, CONVERT(VARCHAR(5),DataCreazione,108)))
when datepart(mi, CONVERT(VARCHAR(5),DataCreazione,108))) between 16 and 45 then dateadd(mi, -datepart(mi, CONVERT(VARCHAR(5),DataCreazione,108))) + 45, CONVERT(VARCHAR(5),DataCreazione,108)))
when datepart(mi, CONVERT(VARCHAR(5),DataCreazione,108))) between 46 and 59 then dateadd(mi, -datepart(mi, CONVERT(VARCHAR(5),DataCreazione,108))) + 60, CONVERT(VARCHAR(5),DataCreazione,108)))
else dateadd(mi, -datepart(mi, CONVERT(VARCHAR(5),DataCreazione,108))), CONVERT(VARCHAR(5),DataCreazione,108))) end), 108) as Ore
from Marcatura
where IdUtente = 2
and (Stato='Ingresso' or Stato='Uscita')
and cast(DataCreazione as DateTime)
between cast(CONVERT(VARCHAR(10), CONVERT(date, '10-11-18', 5), 23) as datetime)
and cast(CONVERT(VARCHAR(10), CONVERT(date, '10-11-19', 5), 23) as datetime)
) t
group by Data
order by CONVERT(datetime, Data, 105) desc