classify interval Day and Night SQL server - sql

Question

I have a time frame :
FROMTIME:06:01:00 - TOTIME:23:59:00 = DAY
FROMTIME:23:59:01 - TOTIME:06:00:00 = Night
I have a TIME_IN and TIME_OUT by a Car .
How to classify interval time by car is DAY or Night or DayAndNight
. I use code but it's execute very long time :
Declare #From_Time_Day time
,#To_Time_Day time
,#From_Time_Night time
,#To_Time_Night time
,#Midnight time
set #From_Time_Day = (select FROM_TIME from DAY_STATUS where DAY_CHECK=1)
set #To_Time_Day = (select TO_TIME from DAY_STATUS where DAY_CHECK=1)
set #From_Time_Night = (select FROM_TIME from DAY_STATUS where DAY_CHECK=2)
set #To_Time_Night = (select TO_TIME from DAY_STATUS where DAY_CHECK=2)
set #Midnight = '00:00:00'
select * from (
select
(case when (
cast((select top 1 IO_TIME from IO_INFO where IO_STATUS= 'IN' and CA_ID = Data.CA_ID and IO_ID < Data.IO_ID order by IO_ID desc) as date)
= cast(Data.IO_TIME as date)
)
then
(
case when (
cast((select top 1 IO_TIME from IO_INFO where IO_STATUS= 'IN' and CA_ID = Data.CA_ID and IO_ID < Data.IO_ID order by IO_ID desc) as time) >= #From_Time_Day
and cast(Data.IO_TIME as time) <=#To_Time_Day
) then 'DAY'
when (
cast((select top 1 IO_TIME from IO_INFO where IO_STATUS= 'IN' and CA_ID = Data.CA_ID and IO_ID < Data.IO_ID order by IO_ID desc) as time) >= #From_Time_Night
and cast(Data.IO_TIME as time) < #Midnight
) then 'Night'
when (
cast((select top 1 IO_TIME from IO_INFO where IO_STATUS= 'IN' and CA_ID = Data.CA_ID and IO_ID < Data.IO_ID order by IO_ID desc) as time) >= #Midnight
and cast(Data.IO_TIME as time) <= #To_Time_Night
) then 'Night'
else 'DayAndNight' end
)
when (
cast((select top 1 IO_TIME from IO_INFO where IO_STATUS= 'IN' and CA_ID = Data.CA_ID and IO_ID < Data.IO_ID order by IO_ID desc) as date)
<> cast(Data.IO_TIME as date)
)
then (
case when(
(cast((select top 1 IO_TIME from IO_INFO where IO_STATUS= 'IN' and CA_ID = Data.CA_ID and IO_ID < Data.IO_ID order by IO_ID desc) as time) >= #From_Time_Night and
cast((select top 1 IO_TIME from IO_INFO where IO_STATUS= 'IN' and CA_ID = Data.CA_ID and IO_ID < Data.IO_ID order by IO_ID desc) as time) < #Midnight)
and (cast(Data.IO_TIME as time)>=#Midnight and cast(Data.IO_TIME as time)<=#To_Time_Night)
) then 'Night'
else 'DayAndNight' end
)
end
) as INTERVAL
from IO_INFO as Data where IO_STATUS = 'OUT'

Answer 1

Okay, seeing that this is a Tricky type of query I've lost some time to find a solution, I've Created a Table in a test database with 4 fields, ID, Car, TimeOut, TimeIn, I've inserted some rows in this table to have samples and then I've made a Query that returns the state of the period for each travel of my cars.
Here is the Query:
SELECT [ID]
,[Car]
,[TimeOut]
,[TimeIn]
, MultiDay
,OutDAyNight
,InDAyNight
, CASE WHEN Multiday = 1 THEN 'Day/Night'
WHEN OutDAyNight+InDAyNight = 1 THEN 'Day/Night'
WHEN OutDAyNight+InDAyNight = 2 THEN 'Day'
WHEN OutDAyNight+InDAyNight = 0 THEN 'Night' END AS Periods
FROM
(SELECT [ID]
,[Car]
,[TimeOut]
,[TimeIn]
, CASE WHEN DATEDIFF(hour, [TimeOut],[TimeIn]) > 18
THEN 1 ELSE 0 END AS MultiDay
, CASE WHEN DATEPART(hour, [TimeOut]) > 6 AND
DATEPART(hour, [TimeOut]) <=23 THEN 1
WHEN DATEPART(hour, [TimeOut]) = 6 AND
DATEPART(minute, [TimeOut]) > 0 THEN 1
ELSE 0 END AS OutDAyNight
, CASE WHEN DATEPART(hour, [TimeIn]) > 6 AND
DATEPART(hour, [TimeIn]) <=23 THEN 1
WHEN DATEPART(hour, [TimeIn]) = 6 AND
DATEPART(minute, [TimeIn]) > 0 THEN 1
ELSE 0 END AS InDAyNight
FROM [dbo].[TbCarInOut] ) Times
Using this double query, In the first select (the lower one in the script) I Used the Datediff function to see if the time between exit and return of the car is more than 18 hours, this surely means there is a day and night period. Then I use the Datepart function to understand if the out time is Night or Day setting a 0 for Night and 1 for day and I do the same for the time In, this way, in the second query, I can use a simple case and a sum to decide if the period is Day/Night, Day or Night.
HTH