版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/BabyFish13/article/details/81251649
1、源数据表结构、样例数据及说明
CREATE TABLE `karaoke_room_actor_snapshot_0` (
`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',
`actor_id` bigint(20) NOT NULL COMMENT '演员 ID',
`room_id` int(11) NOT NULL COMMENT '直播间 ID',
`live_status_id` int(11) NOT NULL COMMENT '直播状态 ID',
`uid` bigint(20) NOT NULL COMMENT '表演者 Uid',
`music_id` int(11) NOT NULL DEFAULT '-1' COMMENT '伴奏 ID',
`identifier` varchar(190) NOT NULL DEFAULT '' COMMENT '设备号',
`score` bigint(20) NOT NULL DEFAULT '0' COMMENT '积分，辅助排序',
`state` tinyint(4) NOT NULL DEFAULT '0' COMMENT '状态：0排麦中，1准备中，2表演中，-1表演结束，-2主动下麦，-3房主强制下麦，-4系统强制下麦',
`created_time` datetime(6) NOT NULL COMMENT '创建时间',
PRIMARY KEY (`id`),
KEY `Index_roomId_lsId_uid` (`room_id`,`live_status_id`,`uid`),
KEY `idx_actor_created` (`actor_id`,`created_time`),
KEY `idx_room_live_state` (`room_id`,`live_status_id`,`state`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='麦序演员快照，按 room_id 256分表'id actor_id room_id live_status_id uid music_id identifier score state created_time
1 728 37194071 292 200134 62348 889134744 1531137151093 0 2018-07-09 19:52:31.000000
2 728 37194071 292 200134 62348 889134744 1531137151093 1 2018-07-09 19:52:33.000000
3 728 37194071 292 200134 62348 889134744 1531137151093 -3 2018-07-09 19:52:52.000000
4 729 37194071 292 200134 26081 889134744 1531137204230 0 2018-07-09 19:53:24.000000
5 729 37194071 292 200134 26081 889134744 1531137204230 1 2018-07-09 19:53:26.000000
6 729 37194071 292 200134 26081 889134744 1531137204230 -3 2018-07-09 19:53:44.000000
7 730 37194071 292 200134 26081 889134744 1531137395308 0 2018-07-09 19:56:35.000000
8 730 37194071 292 200134 26081 889134744 1531137395308 1 2018-07-09 19:56:38.000000
9 730 37194071 292 200134 26081 889134744 1531137395308 2 2018-07-09 19:56:45.000000
10 731 37194071 292 200119 84874 BBA67879-E1FB-4B0E-82E6-3841D8301EB2 1531137444615 0 2018-07-09 19:57:24.000000
11 732 37194071 292 330451222 114810 379085366 1531137497910 0 2018-07-09 19:58:17.000000
12 732 37194071 292 330451222 114810 379085366 1531137497910 -2 2018-07-09 19:58:38.000000
13 730 37194071 292 200134 26081 889134744 1531137395308 -3 2018-07-09 19:59:52.000000说明：
用户进入、等待、退出等分别有一条记录；一个用户可以多次进行同一个房间；没有标记其哪几条（进入、退出）是同一次，只是根据靠近的时间来判断；现在要求根据竖状表整成横行表，计算出用户的表演时间、等待时间等。
2、问题分析及思路说明
从数据上观察，用户可以没有准备中及表演中的记录，但一定会有排麦中及退出（小于0）的记录。可以由此排名确定同一次，然后根据时间范围锁定其其他活动记录。
所以，先进行用户数据排名，之后进行其他数据的相关计算。
3、具体sql语句
为更好的清晰思路，主要采用多临时表的方式进行处理。
drop table if exists xxxlv_mic_range;
create table xxxlv_mic_range as
with tab_mic_start as (
select pt_day,room_id,uid,state,created_time,row_number()over(partition by room_id,uid order by created_time asc) mic_start_rn
from oss_all_karaoke_room_actor_snapshot
where pt_day between '2018-07-18' and '2018-07-26'
and state=0),
tab_mic_over as (
select pt_day,room_id,uid,state,created_time,row_number()over(partition by room_id,uid order by created_time asc) mic_over_rn
from oss_all_karaoke_room_actor_snapshot
where pt_day between '2018-07-18' and '2018-07-26'
and state<0)
select a1.pt_day,a1.room_id,a1.uid,a1.created_time mic_start_time,a2.created_time mic_over_time,a1.mic_start_rn
from tab_mic_start a1
left join tab_mic_over a2 on a1.pt_day=a2.pt_day and a1.room_id=a2.room_id and a1.uid=a2.uid and a1.mic_start_rn=a2.mic_over_rn;
drop table if exists xxxlv_mic_ready;
create table xxxlv_mic_ready as
select a1.pt_day,a1.room_id,a1.uid,a1.state,a1.created_time ready_time,a2.mic_start_time,a2.mic_over_time
from oss_all_karaoke_room_actor_snapshot a1
inner join xxxlv_mic_range a2 on a1.pt_day=a2.pt_day and a1.room_id=a2.room_id and a1.uid=a2.uid
where a1.pt_day between '2018-07-18' and '2018-07-26'
and a1.state=1
and a1.created_time between a2.mic_start_time and a2.mic_over_time;
drop table if exists xxxlv_mic_runing;
create table xxxlv_mic_runing as
select a1.pt_day,a1.room_id,a1.uid,a1.state,a1.created_time runing_time,a2.mic_start_time,a2.mic_over_time
from oss_all_karaoke_room_actor_snapshot a1
inner join xxxlv_mic_range a2 on a1.pt_day=a2.pt_day and a1.room_id=a2.room_id and a1.uid=a2.uid
where a1.pt_day between '2018-07-18' and '2018-07-26'
and a1.state=2
and a1.created_time between a2.mic_start_time and a2.mic_over_time;
drop table if exists xxxlv_mic_basic;
create table xxxlv_mic_basic as
select a0.pt_day,a0.room_id,a0.uid,a0.mic_start_time,a1.ready_time,a2.runing_time,a0.mic_over_time
from xxxlv_mic_range a0
left join xxxlv_mic_ready a1 on a0.pt_day=a1.pt_day and a0.room_id=a1.room_id and a0.uid=a1.uid and a0.mic_start_time=a1.mic_start_time and a0.mic_over_time=a1.mic_over_time
left join xxxlv_mic_runing a2 on a0.pt_day=a2.pt_day and a0.room_id=a2.room_id and a0.uid=a2.uid and a0.mic_start_time=a2.mic_start_time and a0.mic_over_time=a2.mic_over_time
;
drop table if exists xxxlv_mic_timelog;
create table xxxlv_mic_timelog as
select a1.pt_day,a1.uid,a3.nickname,a1.room_id,a1.runing_time,a1.mic_over_time,(unix_timestamp(a1.mic_over_time)-unix_timestamp(coalesce(a1.runing_time,a1.mic_over_time)))/60 act_times,(unix_timestamp(coalesce(a1.runing_time,a1.mic_over_time))-unix_timestamp(a1.mic_start_time))/60 wait_times,a1.mic_start_time
from xxxlv_mic_basic a1
inner join xxxlv_user_info a2 on a1.room_id=a2.room_id
left join (select uid,nickname from oss_bi_all_user_profile where pt_day='2018-07-22') a3 on a1.uid=a3.uid;
drop table if exists xxxlv_gift_record_info21;
create table xxxlv_gift_record_info21 as
select a1.pt_day,a1.receive_uid,a1.room_id,a2.mic_start_time,a2.mic_over_time,sum(case when a1.source=1 then a1.gift_count else 0 end) rechargeable_cnt,sum(case when a1.source=2 then a1.gift_count else 0 end) free_cnt,sum(a1.gift_count) all_cnt
from oss_all_karaoke_gift_record a1
left join (select a1.pt_day,a1.uid,a1.nickname,a1.room_id,a1.runing_time,a1.mic_over_time,a1.mic_start_time
from xxxlv_mic_timelog a1
where a1.runing_time is not null) a2 on a1.pt_day=a2.pt_day and a1.receive_uid=a2.uid and a1.room_id=a2.room_id
where a1.pt_day between '2018-07-18' and '2018-07-26'
and a1.created_time between a2.runing_time and a2.mic_over_time
group by a1.pt_day,a1.receive_uid,a1.room_id,a2.mic_start_time,a2.mic_over_time
;
-------------------------------------------------------------------------------------------
drop table if exists xxxlv_user_result21;
create table xxxlv_user_result21 as
select a1.pt_day,a1.uid,a1.nickname,a1.room_id,a1.runing_time,a1.mic_over_time,a1.act_times,a1.wait_times,a2.rechargeable_cnt,a2.free_cnt,a2.all_cnt
from xxxlv_mic_timelog a1
left join xxxlv_gift_record_info21 a2 on a1.pt_day=a2.pt_day and a1.uid=a2.receive_uid and a1.room_id=a2.room_id and a1.mic_start_time=a2.mic_start_time and a1.mic_over_time=a2.mic_over_time
;
-------------------------------------------------------------------------------------------
--2.2是2.1的汇总
drop table if exists xxxlv_user_result22;
create table xxxlv_user_result22 as
select a1.pt_day,a1.uid,a1.nickname,a1.room_id,sum(a1.act_times) act_times,sum(a1.wait_times) wait_times,count(*) mic_cnt,count(case when a1.runing_time is not null then a1.uid else null end) act_cnt,
sum(a1.rechargeable_cnt) rechargeable_cnt,sum(a1.free_cnt) free_cnt,sum(a1.all_cnt) all_cnt
from xxxlv_user_result21 a1
group by a1.pt_day,a1.uid,a1.nickname,a1.room_id;