Question

您好我想在两个日期之间显示SQL差异：
* END DATE = dt_termino / now（）
* START DATE = dt_inicio

我有一个用CSV写的函数...但在我的csv输出中如下：

id_task_tarefa |      dt_inicio      |     dt_termino      |     sum
211            | 2016-01-25 10:40:25 | 2016-01-27 08:51:02 | 01 22:10:37
210            | 2016-01-25 10:40:29 | 2016-01-27 08:50:21 | 01 22:09:52

我需要一个格式输出Excel [h]：mm：ss; @ 像这样

id_task_tarefa |      dt_inicio      |     dt_termino      |    sum
211            | 2016-01-25 10:40:25 | 2016-01-27 08:51:02 | 46:10:37
210            | 2016-01-25 10:40:29 | 2016-01-27 08:50:21 | 46:09:52

这是我的SQL：

SELECT id_task_tarefa, 
       dt_inicio, 
       dt_termino, 
       to_char(COALESCE(dt_termino::timestamp, now()::timestamp) 
             - dt_inicio::timestamp,'DD HH24:MI:SS')
FROM crm.task_interacao

Answer 1

不确定是否有更好的方法，但有效

SELECT '2016-01-25 10:40:25' start_date, 
       '2016-01-27 08:51:02' end_date, 
       to_char('2016-01-27 08:51:02'::timestamp 
             - '2016-01-25 10:40:25'::timestamp,'HH24:MI:SS') as sum_text,
       TRUNC(EXTRACT(epoch FROM '2016-01-27 08:51:02'::timestamp - '2016-01-25 10:40:25'::timestamp)/3600)  time_diff,
       TRUNC(EXTRACT(epoch FROM '2016-01-27 08:51:02'::timestamp - '2016-01-25 10:40:25'::timestamp)/3600)  || ':' ||
       to_char('2016-01-27 08:51:02'::timestamp 
             - '2016-01-25 10:40:25'::timestamp,'MI:SS') result

<强>输出

Answer 2

这个功能对您来说很方便：

create or replace function interval_in_hours(interval)
returns text language sql as $$
    select format('%s:%s',
        (extract (epoch from $1) / 3600)::int,
        to_char($1, 'mi:ss'))
$$;

使用：

with the_data (id_task_tarefa, dt_inicio, dt_termino) as (
    values
        (211, timestamp '2016-01-25 10:40:25', timestamp '2016-01-27 08:51:02'),
        (210, timestamp '2016-01-25 10:40:29', timestamp '2016-01-27 08:50:21') 
    )

select *, interval_in_hours(dt_termino- dt_inicio)::interval as sum
from the_data;

 id_task_tarefa |      dt_inicio      |     dt_termino      |   sum    
----------------+---------------------+---------------------+----------
            211 | 2016-01-25 10:40:25 | 2016-01-27 08:51:02 | 46:10:37
            210 | 2016-01-25 10:40:29 | 2016-01-27 08:50:21 | 46:09:52
(2 rows)

两个日期之间的差异postgresql在Excel格式中

2 个答案: