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提交日期 题目名称 提交代码
2024-12-30 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_cnt,
min(trx_time) first_time
from cmb_usr_trx_rcd 
where 
	usr_id = '5201314520'
and
trx_amt >= 288
group by
	mch_nm,usr_id
order by trx_cnt desc
2024-12-30 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_cnt,
min(trx_time) first_time
from cmb_usr_trx_rcd 
where 
	usr_id = '5201314520'
and
trx_amt >= 288
group by
	mch_nm,usr_id
order by 4 desc
2024-12-30 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_cnt,
min(trx_time) first_time
from cmb_usr_trx_rcd 
where 
	usr_id = '5201314520'
and
trx_amt >= 288
group by
	mch_nm
2024-12-30 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),mch_nm
 from 
 	cmb_usr_trx_rcd 
 where 
 	usr_id = '5201314520'
and
mch_nm = '红玫瑰按摩保健休闲'
2024-12-30 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(*) as total_trx_cnt,
count(distinct(usr_id)) as unique_usr_cnt,
count(*)/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
2024-12-30 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(*) as trx_cnt
from 
	cmb_usr_trx_rcd 
where 
	mch_nm = '红玫瑰按摩保健休闲'
and 
year(trx_time) = 2024
and
month(trx_time) between 1 and 7
group by
	trx_amt
order by
	trx_cnt desc
limit 5
2024-12-30 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) as max_trx_amt, 
    min(trx_amt) as min_trx_amt, 
    avg(trx_amt) as avg_trx_amt, 
    sum(trx_amt) as total_trx_amt  
from 
	cmb_usr_trx_rcd 
where
mch_nm = '红玫瑰按摩保健休闲'
and
year(trx_time) = 2024 and month(trx_time) = 9
group by
	date(trx_time)
order by
    trx_date;
2024-12-30 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) as max_trx_amt, 
    min(trx_amt) as min_trx_amt, 
    avg(trx_amt) as avg_trx_amt, 
    sum(trx_amt) as total_trx_amt  
from 
	cmb_usr_trx_rcd 
where
	usr_id='5201314520'
and 
mch_nm = '红玫瑰按摩保健休闲'
and
year(trx_time) = 2024 and month(trx_time) = 9
group by
	date(trx_time)
order by
    trx_date;
2024-12-30 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
	usr_id='5201314520'
and 
mch_nm = '红玫瑰按摩保健休闲'
and
date(trx_time) between '2024-09-01' and '2024-09-30'
group by
	date(trx_time)
order by
    trx_date;
2024-12-30 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
	usr_id='5201314520'
and 
mch_nm = '红玫瑰按摩保健休闲'
and
year(trx_time) = 2024 and month(trx_time) = 9
group by
	date(trx_time)
order by
    trx_date;
2024-12-30 分组与聚合函数(2)擦边营收怎么样,聚合函数可看出 
select 
	max(trx_amt),min(trx_amt),avg(trx_amt),sum(trx_amt) 
from 
	cmb_usr_trx_rcd 
where
	usr_id='5201314520'
and 
mch_nm = '红玫瑰按摩保健休闲'
and
year(trx_time) = 2024 and month(trx_time) = 9
group by
	date(trx_time)
2024-12-30 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;
2024-12-30 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;
2024-12-30 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;
2024-12-30 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
date(trx_time) 
between '2024-09-01' and '2024-09-30' 
and (
(hour(trx_time) >= 22) 
or
(hour(trx_time) between 0 and 5) 
)
and usr_id = '5201314520' 
order by trx_time
2024-12-30 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
date(trx_time) 
between '2024-09-01' and '2024-09-30' 
and (
(hour(trx_time) >= 22) 
AND
(hour(trx_time) between 0 and 5) 
)
and usr_id = '5201314520' 
order by trx_time
2024-12-30 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
    date(trx_time)  between '2024-09-01' and '2024-09-30' 
    and hour(trx_time) between 1 and 5 
    and usr_id = '5201314520' 
order by trx_time
2024-12-30 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 '2024-9-30' and usr_id = '5201314520' order by trx_time
2024-12-30 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 '2024-9-30' or usr_id = '5201314520' order by trx_time
2024-12-30 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 limit 5;