Tính toán số giờ dịch vụ đã qua cho các vé mở (Oracle SQL)

Bạn có thể tính lượng thời gian (điều chỉnh từ câu trả lời của tôi tại đây và tại đây ):

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
);

Mà, đối với dữ liệu mẫu:

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

Kết quả đầu ra (trong đó NLS_DATE_FORMAT là YYYY-MM-DD HH24:MI:SS (DY) ):

db <> fiddle tại đây