Puede calcular la cantidad de tiempo (adaptado de mis respuestas aquí y aquí ):
SELECT ticket_nr,
date_logged,
current_datetime,
date_closed,
TO_CHAR( FLOOR( service_time_seconds / 60 / 60 ), 'FM9990' )
|| ':'
|| TO_CHAR( MOD( FLOOR( service_time_seconds / 60 ), 60 ), 'FM00' )
|| ':'
|| TO_CHAR( MOD( service_time_seconds, 60 ), 'FM00' )
AS "SERVICE_TIME HH:MM:SS"
FROM (
SELECT ticket_nr,
date_logged,
SYSDATE AS current_datetime,
date_closed,
ROUND(
(
-- Calculate the full weeks difference from the start of ISO weeks.
(
TRUNC( COALESCE( date_closed, SYSDATE ), 'IW' )
- TRUNC( date_logged, 'IW' )
) * (9.5*4+6)/(7*24)
-- Add the hours for the full days for the final week.
+ DECODE(
TRUNC( COALESCE( date_closed, SYSDATE ) )
- TRUNC( COALESCE( date_closed, SYSDATE ), 'IW' ),
0, 0.0,
1, 9.5,
2, 19.0,
3, 28.5,
4, 38.0,
44.0
) / 24
-- Subtract the hours for the full days from the days of the week
-- before the date logged.
- DECODE(
TRUNC( date_logged )
- TRUNC( date_logged, 'IW' ),
0, 0.0,
1, 9.5,
2, 19.0,
3, 28.5,
4, 38.0,
44.0
) / 24
-- Add the hours of the final day
+ LEAST(
GREATEST(
COALESCE( date_closed, SYSDATE )
- ( TRUNC( COALESCE( date_closed, SYSDATE ) )
+ INTERVAL '07:00' HOUR TO MINUTE
),
0
),
DECODE(
TRUNC( COALESCE( date_closed, SYSDATE ) )
- TRUNC( COALESCE( date_closed, SYSDATE ), 'IW' ),
0, 9.5,
1, 9.5,
2, 9.5,
3, 9.5,
4, 6.0,
0.0
) / 24
)
-- Subtract the hours of the day before the range starts.
- LEAST(
GREATEST(
date_logged
- ( TRUNC( date_logged ) + INTERVAL '07:00' HOUR TO MINUTE ),
0
),
DECODE(
TRUNC( date_logged )
- TRUNC( date_logged, 'IW' ),
0, 9.5,
1, 9.5,
2, 9.5,
3, 9.5,
4, 6.0,
0.0
) / 24
)
)
-- Multiply to give seconds rather than fractions of full days.
* 24 * 60 * 60
) AS service_time_seconds
FROM table_name
);
Que, para los datos de muestra:
CREATE TABLE table_name ( Ticket_Nr, date_logged, date_closed ) AS
SELECT 1234567, DATE '2021-01-06' + INTERVAL '11:30:52' HOUR TO SECOND, NULL FROM DUAL UNION ALL
SELECT 8912345, DATE '2021-01-13' + INTERVAL '09:14:16' HOUR TO SECOND, NULL FROM DUAL UNION ALL
SELECT 6789012, DATE '2021-01-14' + INTERVAL '10:48:28' HOUR TO SECOND, DATE '2021-01-21' + INTERVAL '11:40:00' HOUR TO SECOND FROM DUAL UNION ALL
SELECT 1, DATE '2021-01-07' + INTERVAL '07:00:00' HOUR TO SECOND, DATE '2021-01-14' + INTERVAL '07:00:00' HOUR TO SECOND FROM DUAL UNION ALL
SELECT 2, DATE '2021-01-07' + INTERVAL '07:00:00' HOUR TO SECOND, DATE '2021-01-08' + INTERVAL '07:00:00' HOUR TO SECOND FROM DUAL UNION ALL
SELECT 3, DATE '2021-01-08' + INTERVAL '07:00:00' HOUR TO SECOND, DATE '2021-01-09' + INTERVAL '07:00:00' HOUR TO SECOND FROM DUAL UNION ALL
SELECT 4, DATE '2021-01-09' + INTERVAL '07:00:00' HOUR TO SECOND, DATE '2021-01-10' + INTERVAL '07:00:00' HOUR TO SECOND FROM DUAL
Salidas (donde NLS_DATE_FORMAT es YYYY-MM-DD HH24:MI:SS (DY) ):
db<>fiddle aquí
