0

2 つのクエリがあります。1：

select driver_id,count(*) as minors from zendesk_tickets
where city = 'Los Angeles'
and (tags like '%la_driver_quality_inefficientroute%' 
or tags like '%la_driver_quality_attitude%'
or tags like '%la_driver_quality_dirtycar%'
or tags like '%la_driver_quality_hygiene%'
or tags like '%la_driver_quality_wronguser%'
or tags like '%la_driver_quality_starttripearly%'
or tags like '%la_driver_quality_arrivingearly%'
or tags like '%la_driver_quality_didnotanswer%'
or tags like '%la_driver_quality_nodoor%'
or tags like '%la_driver_quality_cigarettes%'
or tags like '%la_driver_quality_startstop%'
or tags like '%la_driver_quality_arguing%'
or tags like '%la_driver_quality_refusedestination%'
or tags like '%la_driver_quality_onphoneontrip%'
)
and driver_id is not null
group by driver_id
order by minors desc

どの出力:

 driver_id     minors
1234           2
1243           3
etc           etc

そして別のクエリ：

select driver_id,count(*) as majors from zendesk_tickets
where city = 'Los Angeles'
and (tags like '%la_driver_quality_acceptcash%'
or tags like '%la_driver_quality_solicitingclient%'
or tags like '%la_driver_quality_majordisrespect%'
or tags like '%la_driver_quality_physicalaltercation%'
or tags like '%la_driver_quality_sexualharassment%'
or tags like '%la_driver_quality_majordrivingviolation%'
or tags like '%la_driver_quality_dui%'
or tags like '%la_driver_quality_usingaccount%'
or tags like '%la_driver_quality_expiredinfo%'
)
and driver_id is not null
group by driver_id
order by majors desc

どの出力:

driver_id     majors
1234           1
1243           2
etc           etc

これら 2 つを結合しようとすると (左結合)、最初のクエリ (マイナー) にあるドライバー ID のみが返されます。基本的にこれらのクエリを結合したいのですが、クエリビルダーで結合関数が機能しません。これら 2 つのクエリの構造を改善し、マイナーとメジャーのすべてのデータを出力する 1 つのテーブルに返す方法に関する提案は次のとおりです。

driver_id     minors      majors
1234           1           3
1243           2           4
etc           etc          etc.
4

2 に答える 2

1

外部結合を使用する必要があります。

詳細については、このドキュメントを参照してください。

次のようなことを試してください：

select min.driver_id, majors, minors from (

    select driver_id,count(*) as minors from zendesk_tickets
    where city = 'Los Angeles'
    and (tags like '%la_driver_quality_inefficientroute%' 
    or tags like '%la_driver_quality_attitude%'
    or tags like '%la_driver_quality_dirtycar%'
    or tags like '%la_driver_quality_hygiene%'
    or tags like '%la_driver_quality_wronguser%'
    or tags like '%la_driver_quality_starttripearly%'
    or tags like '%la_driver_quality_arrivingearly%'
    or tags like '%la_driver_quality_didnotanswer%'
    or tags like '%la_driver_quality_nodoor%'
    or tags like '%la_driver_quality_cigarettes%'
    or tags like '%la_driver_quality_startstop%'
    or tags like '%la_driver_quality_arguing%'
    or tags like '%la_driver_quality_refusedestination%'
    or tags like '%la_driver_quality_onphoneontrip%'
    )
    and driver_id is not null
    group by driver_id
    order by minors desc

) as min left outer join  (

    select driver_id,count(*) as majors from zendesk_tickets
    where city = 'Los Angeles'
    and (tags like '%la_driver_quality_acceptcash%'
    or tags like '%la_driver_quality_solicitingclient%'
    or tags like '%la_driver_quality_majordisrespect%'
    or tags like '%la_driver_quality_physicalaltercation%'
    or tags like '%la_driver_quality_sexualharassment%'
    or tags like '%la_driver_quality_majordrivingviolation%'
    or tags like '%la_driver_quality_dui%'
    or tags like '%la_driver_quality_usingaccount%'
    or tags like '%la_driver_quality_expiredinfo%'
    )
    and driver_id is not null
    group by driver_id
    order by majors desc

) as maj on (min.driver_id=maj.driver_id);

もちろん、実際には、サブクエリのビューを作成するか、このクエリを整理する他の方法を作成します...

于 2013-07-22T03:32:33.907 に答える
0 
select data.driver_id, sum(data.minor), sum(data.major)
from (
    select driver_id,
        case when 
            tags like '%la_driver_quality_inefficientroute%' 
            or tags like '%la_driver_quality_attitude%'
            or tags like '%la_driver_quality_dirtycar%'
            or tags like '%la_driver_quality_hygiene%'
            or tags like '%la_driver_quality_wronguser%'
            or tags like '%la_driver_quality_starttripearly%'
            or tags like '%la_driver_quality_arrivingearly%'
            or tags like '%la_driver_quality_didnotanswer%'
            or tags like '%la_driver_quality_nodoor%'
            or tags like '%la_driver_quality_cigarettes%'
            or tags like '%la_driver_quality_startstop%'
            or tags like '%la_driver_quality_arguing%'
            or tags like '%la_driver_quality_refusedestination%'
            or tags like '%la_driver_quality_onphoneontrip%' then 1 else 0 end minor,
        case when 
            tags like '%la_driver_quality_acceptcash%'
            or tags like '%la_driver_quality_solicitingclient%'
            or tags like '%la_driver_quality_majordisrespect%'
            or tags like '%la_driver_quality_physicalaltercation%'
            or tags like '%la_driver_quality_sexualharassment%'
            or tags like '%la_driver_quality_majordrivingviolation%'
            or tags like '%la_driver_quality_dui%'
            or tags like '%la_driver_quality_usingaccount%'
            or tags like '%la_driver_quality_expiredinfo%'then 1 else 0 end major
    from zendesk_tickets
    where city = 'Los Angeles'
    and driver_id is not null) data
group by data.driver_id
于 2013-07-22T06:32:33.967 に答える