Question

我在下面有一个工作查询，但我需要在我的select语句中为这些代理选择名字和姓氏，没有任何实际值加入表格。

我的另一个表是ambition.ambition_users，它有first_name，last_name和extension。我有子查询正确拉动扩展并将其视为id。但是，在我的主要选择中，我还想选择first_name和last_name。我似乎无法通过一个简单的子查询找到一种方法，除非我能够在ambition_users上加入我创建的id，否则我无法加入该表。 .extention。

在不影响当前查询聚合的情况下，实现提取名字和姓氏的最佳方法是什么？

这是工作查询：

select
case 
when callingpartyno       in (select extension from ambition.ambition_users)
then callingpartyno
when finallycalledpartyno in (select extension from ambition.ambition_users)
then finallycalledpartyno
 end as id

-- this is where i want to select first_name and last_name from ambition.ambition_users

, sum(duration) as total_talk_time_seconds
, round(sum(duration) / 60,2) as total_talk_time_minutes
, sum(if(legtype1 = 1,1,0)) as total_outbound
, sum(if(legtype1 = 2,1,0) and answered = 1) as total_inbound
, sum(if(legtype1 = 2,1,0) and answered = 0) as total_missed
, sum(if(legtype1 = 1, 1, 0)) +                   -- outbound calls
 sum(if(legtype1 = 2, 1, 0))  as total_calls
, now() as time_of_report
, curdate() as date_of_report
 from 
  ambition.session a
  join ambition.callsummary b
  on a.notablecallid = b.notablecallid
 where 
date(a.ts) >= curdate()
 and (
callingpartyno in (select extension from ambition.ambition_users
)
 or  finallycalledpartyno in (select extension from ambition.ambition_users
)
)
 group by
 id;

Answer 1

我没有在你的表之间建立关系，但你可以使用下面的逻辑来在select语句中使用子查询获取名字和/或姓名

    select
    case 
    when callingpartyno       in (select extension from ambition.ambition_users)
    then callingpartyno
    when finallycalledpartyno in (select extension from ambition.ambition_users)
    then finallycalledpartyno
     end as id

    -- this is where i want to select first_name and last_name from ambition.ambition_users

Max((select firstname from ambition.ambition_users as t1 where t1. Extension=b.callingpartyno)),
Max((select lastname from ambition.ambition_users as t1 where t1. Extension=b.callingpartyno)),

    , sum(duration) as total_talk_time_seconds
    , round(sum(duration) / 60,2) as total_talk_time_minutes
    , sum(if(legtype1 = 1,1,0)) as total_outbound
    , sum(if(legtype1 = 2,1,0) and answered = 1) as total_inbound
    , sum(if(legtype1 = 2,1,0) and answered = 0) as total_missed
    , sum(if(legtype1 = 1, 1, 0)) +                   -- outbound calls
     sum(if(legtype1 = 2, 1, 0))  as total_calls
    , now() as time_of_report
    , curdate() as date_of_report
     from 
      ambition.session a
      join ambition.callsummary b
      on a.notablecallid = b.notablecallid
     where 
    date(a.ts) >= curdate()
     and (
    callingpartyno in (select extension from ambition.ambition_users
    )
     or  finallycalledpartyno in (select extension from ambition.ambition_users
    )
    )
     group by
     id;

Answer 2

为什么需要这么多子查询。您可以使用左连接并取出所有其他子查询。

    select
    COALESCE( callingpartyno, finallycalledpartyno) as id
    -- if extension is not equal to callingpartyno, it will return null because its a left join. If you use coalesce you can get the first non null value.

    , max(c.firstname)
    , max(c.lastname)
    -- if you use max you need not put that in group by clause

    , sum(duration) as total_talk_time_seconds
    , round(sum(duration) / 60,2) as total_talk_time_minutes
    , sum(if(legtype1 = 1,1,0)) as total_outbound
    , sum(if(legtype1 = 2,1,0) and answered = 1) as total_inbound
    , sum(if(legtype1 = 2,1,0) and answered = 0) as total_missed
    , sum(if(legtype1 = 1, 1, 0)) +                   -- outbound calls
     sum(if(legtype1 = 2, 1, 0))  as total_calls
    , now() as time_of_report
    , curdate() as date_of_report
     from 
      ambition.session a
      join ambition.callsummary b
      on a.notablecallid = b.notablecallid
---- adding a left join
    left join 
     ambition.users c
    on c.extension = callingpartyno or c.extension = finallycalledpartyno
     where 
    date(a.ts) >= curdate()
     group by id;

Answer 3

而不是再次使用相同的子查询＆amp;再次，我建议你将子查询的结果存储在一个变量中。

此外，您可以针对callingpartyno和finallycalledpartyno撰写不同的查询，然后将结果与UNION合并，如下所示：

select @ext := Group_concat(distinct extension separator ',') from ambition.ambition_users;

select tmp.*,
(select firstn from ambition.ambition_users where tmp.id = extension) as First_Name,
(select lastn from ambition.ambition_users where tmp.id = extension) as Last_Name
From
(select
 callingpartyno as id
, sum(duration) as total_talk_time_seconds
, round(sum(duration) / 60,2) as total_talk_time_minutes
, sum(if(legtype1 = 1,1,0)) as total_outbound
, sum(if(legtype1 = 2,1,0) and answered = 1) as total_inbound
, sum(if(legtype1 = 2,1,0) and answered = 0) as total_missed
, sum(if(legtype1 = 1, 1, 0)) +                   -- outbound calls
 sum(if(legtype1 = 2, 1, 0))  as total_calls
, now() as time_of_report
, curdate() as date_of_report
 from 
  ambition.session a
  join ambition.callsummary b
  on a.notablecallid = b.notablecallid
 where 
date(a.ts) >= curdate()
 and 
callingpartyno in (@ext)
group by callingpartyno)

      UNION

(select
 finallycalledpartyno  as id
, sum(duration) as total_talk_time_seconds
, round(sum(duration) / 60,2) as total_talk_time_minutes
, sum(if(legtype1 = 1,1,0)) as total_outbound
, sum(if(legtype1 = 2,1,0) and answered = 1) as total_inbound
, sum(if(legtype1 = 2,1,0) and answered = 0) as total_missed
, sum(if(legtype1 = 1, 1, 0)) +                   -- outbound calls
 sum(if(legtype1 = 2, 1, 0))  as total_calls
, now() as time_of_report
, curdate() as date_of_report
 from 
  ambition.session a
  join ambition.callsummary b
  on a.notablecallid = b.notablecallid
 where 
date(a.ts) >= curdate()
 and 
finallycalledpartyno  in (@ext)
group by finallycalledpartyno) 
) tmp;

从没有连接的另一个表中选择

3 个答案: