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提交日期 题目名称 提交代码
2024-12-27 分组与聚合函数(6)想知道渣男有多坏,疯狂使用GroupBy 
select 
	usr_id
,mch_nm
,sum(trx_amt) as trx_amt
,count(trx_amt) as trx_cnt
,min(trx_time) as first_time
from cmb_usr_trx_rcd 
where usr_id = '5201314520'
	and trx_amt>288
group by usr_id
,mch_nm
order by trx_cnt desc
limit 5
2024-12-27 分组与聚合函数(6)想知道渣男有多坏,疯狂使用GroupBy 
select 
	usr_id
,mch_nm
,sum(trx_amt) as trx_amt
,count(trx_amt) as trx_cnt
,min(trx_time) as first_time
from cmb_usr_trx_rcd 
where usr_id = '5201314520'
	and trx_amt>288
group by usr_id
,mch_nm
order by trx_cnt desc
2024-12-27 分组与聚合函数(5)想知道何时成瘾,用Max Or Min? 
select 
	usr_id
,min(trx_time) as first_time
,mch_nm
from cmb_usr_trx_rcd 
 where usr_id = '5201314520'
 and mch_nm = '红玫瑰按摩保健休闲'
 group by mch_nm,usr_id
2024-12-27 分组与聚合函数(5)五花八门的项目,其实都有固定套路(2) 
select 
	trx_amt
,count(usr_id) as total_trx_cnt
,count(distinct usr_id) as unique_usr_cnt
,count(usr_id)/count(distinct usr_id) as avg_trx_per_user
from cmb_usr_trx_rcd 
where mch_nm = '红玫瑰按摩保健休闲'
	and date(trx_time) between '2023-01-01' and '2024-06-30'
 group by trx_amt
 order by avg_trx_per_user desc
 limit 5
2024-12-27 分组与聚合函数(3)五花八门的项目,其实都有固定套路(1) 
select
	trx_amt
,count(trx_amt) as trx_cnt
from cmb_usr_trx_rcd
where mch_nm='红玫瑰按摩保健休闲'
	and date(trx_time) between '2024-01-01' and '2024-07-31'
group by trx_amt
order by trx_cnt desc
limit 5
2024-12-27 分组与聚合函数(3)五花八门的项目,其实都有固定套路(1) 
select
	trx_amt
,count(trx_amt)
from cmb_usr_trx_rcd
where mch_nm='红玫瑰按摩保健休闲'
	and date(trx_time) between '2024-01-01' and '2024-07-31'
group by trx_amt
order by sum(trx_amt) desc
limit 5
2024-12-27 分组与聚合函数(2)擦边营收怎么样,聚合函数可看出 
select 
	date(trx_time) as trx_date
,max(trx_amt)
,min(trx_amt)
,avg(trx_amt)
,sum(trx_amt)
from cmb_usr_trx_rcd 
where month(trx_time) = 9
and year(trx_time)=2024
and mch_nm = '红玫瑰按摩保健休闲'
group by trx_date
order by trx_date
2024-12-27 分组与聚合函数(1)Money全都花在哪,GroupBy来查一查 
select 
	mch_nm,
	sum(trx_amt) as sum_trx_amt
from 
	cmb_usr_trx_rcd
where 
	usr_id='5201314520'
and year(trx_time) = 2024
group by mch_nm
order by sum_trx_amt desc
2024-12-27 条件过滤(3)Hour函数很给力,组合条件要仔细 
select * from cmb_usr_trx_rcd
where usr_id='5201314520'
 and date(trx_time) between '2024-09-01' and '2024-09-30'
 and (hour(trx_time) between 0 and 5
 or hour(trx_time) between 22 and 23)
 order by trx_time
2024-12-27 条件过滤(3)Hour函数很给力,组合条件要仔细 
select * from cmb_usr_trx_rcd
where usr_id='5201314520'
 and date(trx_time) between '2024-09-01' and '2024-09-30'
 and (hour(trx_time) between 0 and 5
 or hour(trx_time) between 22 and 23)
2024-12-27 条件过滤(2)半夜活动有猫腻,Hour函数给给力 
select * from cmb_usr_trx_rcd
where usr_id='5201314520'
and hour(trx_time) between 1 and 5
and date(trx_time) between '2024-09-01' and '2024-09-30'
 order by trx_time
2024-12-27 条件过滤(2)半夜活动有猫腻,Hour函数给给力 
select * from cmb_usr_trx_rcd
where usr_id='5201314520'
and hour(trx_time) between 1 and 5
and date(trx_time) between '2024-09-01' and '2024-09-30'
2024-12-27 条件过滤(2)半夜活动有猫腻,Hour函数给给力 
select * from cmb_usr_trx_rcd
where usr_id='5201314520'
and hour(trx_time) between '01:00:00' and '04:59:59'
and date(trx_time) between '2024-09-01' and '2024-09-30'
2024-12-27 条件过滤(2)半夜活动有猫腻,Hour函数给给力 
select * from cmb_usr_trx_rcd
where usr_id='5201314520'
and hour(trx_time) between '01:00:00' and '05:00:00'
and date(trx_time) between '2024-09-01' and '2024-09-30'
2024-12-27 条件过滤(1)异地男友有异常,数分闺蜜来帮忙 
select
    *
from
    cmb_usr_trx_rcd  
where
    date(trx_time)  
    between '2024-09-01' and '2024-09-30'  
    and usr_id = '5201314520'  
order by
    trx_time
2024-12-27 条件过滤(1)异地男友有异常,数分闺蜜来帮忙 
select
    *
from
    cmb_usr_trx_rcd  
where
    date(trx_time)  
    between '2024-09-01' and '2024-09-31'  
    or usr_id = '5201314520'  
order by
    trx_time