如何在mysql中以10分钟为间隔获取结果

vktxenjb 于 2021-06-20 发布在 Mysql

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如何在10分钟的时间间隔内找到十个不同的目的地？

user_id             time        action  destination place
    2017032000000000097 00:00:00    Click   Rimini  Regina Elena 57
    2017032000000000097 00:03:53    Click   Sant    Regina Elena 571
    2017032000000000097 00:01:16    Click   Regina  Regina Elena 572
    2017032000000000097 00:04:34    Click   Rimini  Regina Elena 57
    2017032000000000129 00:07:32    Click   Berlin  MÃ¼ggelsee Berlin
    2017032000000000129 00:18:36    Click   GRC     SensCity Berlin Spandau
    2017032000000000129 00:16:12    Click   Berlin  Azimut Berlin City South

预期产量/类似产量

time            destination(top 10 during 10 minute interval) 
-------------   ---- 
00:00:00        NULL
00:10:00        Rimini,Sant,Regina
00:20:00        Berlin,Grc
00:30:00        NULL

我试过下面的代码，

select destination , count(user_id),time from click
where MINUTE(time)>= MINUTE(now())-10 and MINUTE(time)< minute(now()) and destination is not null
group by destination,MINUTE(time)>= MINUTE(now())-10 and MINUTE(time)< minute(now()) order by count(user_id) desc;

sql mysql

来源：https://stackoverflow.com/questions/51385586/how-to-get-result-based-on-10-minutes-interval-in-mysql

3条答案

按热度按时间

toiithl61#

取每一次的前三个字符，并在该子串上进行聚合。
所以前五次变成 00:0 接下来的三个变成 00:1 这样，十分钟间隔内的任何时间都会被截断为相同的内容。

select substring(time,0,4) as truncTime, destination, count(*)
from table
group by truncTime

给你

truncTime  destination  count
00:0       Rimini       4
00:0       Berlin       1
00:1       Berlin       2

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yrwegjxp2#

我通过下面的查询找到了解决办法。

select a.time_column,group_concat(a.destination order by ct desc) from  (select case 
            when time between '00:00:00' and '00:10:00' then '00:10:00'
            when time between '00:10:01' and '00:20:00' then '00:20:00'
            when time between '00:20:01' and '00:30:00' then '00:30:00'
        else '00:00:00' end as time_column 
        , destination
        , count(destination) ct
from click
group by time_column,destination
order by time_column,count(destination) desc limit 10)a
group by a.time_column;

赞(0）回复(0）举报 2021-06-20

r7s23pms3#

select destination , count(id) from your_table
where MINUTE(time)>= MINUTE(now())-10 and MINUTE(time)< minute(now()) 
group by destination 
LIMIT 10

赞(0）回复(0）举报 2021-06-20

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如何在mysql中以10分钟为间隔获取结果

3条答案

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