没有一种行类型的多个日期之间的小时总和

Question

我需要把时间加起来，减去状态为“STOP”时的时间。我可以进行 SQL 查询还是需要合并 SQL + PHP？我得到了这样一个数据库。状态可以重复

MariaDB 10.5.11，
PHP7.4.5

ID Date                 Status

1  2020.11.02 15:00     New 
1  2020.11.02 15:00     New_Step 
1  2020.11.02 15:05     Start 
1  2020.11.02 15:05     Stop   
1  2020.11.02 15:10     Start
1  2020.11.02 15:15     Transferred
1  2020.11.02 15:20     Stop
1  2020.11.02 16:25     End  
2  2020.11.02 16:00     New 
2  2020.11.02 16:00     Start 
2  2020.11.02 16:05     Stop   
2  2020.11.02 16:10     Start
2  2020.11.02 16:15     Stop   
2  2020.11.02 16:20     Start
2  2020.11.02 16:25     New_Step 
3  2020.11.02 16:30     Transferred
2  2020.11.02 16:35     End

我需要得到这个结果

ID SumTime
1  15 min
2  25 min

我需要向此查询添加新状态“已转移且 New_Step”

SELECT t1.ID, SUM(TIMESTAMPDIFF(MINUTE,t1.`Date`,t2.`Date`)) complsum
FROM (SELECT  *,ROW_NUMBER() OVER (PARTITION BY `ID` ORDER BY `Date` ASC) AS row_num 
FROM table1 WHERE `Status` =  'Start') t1 
INNER JOIN (SELECT  *,ROW_NUMBER() OVER (PARTITION BY `ID` ORDER BY `Date` ASC) AS row_num 
FROM table1 WHERE `Status`  IN ('Stop','End')) t2 
ON t1.ID = t2.ID AND t1.`row_num` =  t2.`row_num`
GROUP BY t1.ID

Answer 1

我不明白其中的逻辑，但也许你需要在

WITH cte AS (SELECT ID, `Date`
             FROM test
             GROUP BY ID, `Date`
             -- remove timepoint where status is 'Stop' for at least one row
             HAVING !SUM(Status = 'Stop'))

SELECT ID, 
       -- Calculate points amount and multiply by 5, adjust points to ranges between points
       CONCAT(5 * COUNT(`Date`) - 5, ' min')
FROM cte
GROUP BY id;

?

fiddle

Answer 2

您想计算所有开始状态不是“停止”的间隔。您可以只使用 lead() 和日期算法：

select id, sum(timestampdiff(minute, date, lead_date)) sumtime
from (
    select t.*, lead(date) over(partition by id order by date) lead_date
    from mytable t
) t
where status <> 'Stop'
group by id

请注意，要使其始终如一地工作，您需要每个 date 都是唯一的 - 否则事件的顺序未定义重复 - 或者，至少，您需要另一个标准来打破日期关系，例如 auto-incrementing 主键。

这里有一个demo on DB Fiddle演示了查询是如何工作的，在子查询的order by中添加了一个主键。

没有一种行类型的多个日期之间的小时总和

Sum of hours between multiple dates without one row type

php

mysql

sql

datetime

date-arithmetic