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2024-11-10 分组与聚合函数(5)五花八门的项目,其实都有固定套路(2)  已解决

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提交日期 题目名称 提交代码
2024-11-11 字符串与通配符(1)名称里面有特服,可以使用通配符 
select
count(distinct
mch_nm) mch_cnt
from cmb_usr_trx_rcd
where mch_nm like '%按摩保健休闲%'
2024-11-11 字符串与通配符(1)名称里面有特服,可以使用通配符 
select
count(distinct
mch_nm)
from cmb_usr_trx_rcd
where mch_nm like '%按摩保健休闲%'
2024-11-10 分类(1)姿势太多很过分,分类要用CaseWhen 
select
case when trx_amt=288 then '1.WithHand'
when trx_amt=388 then '2.WithMimi'
when trx_amt=588 then '3.BlowJobbie'
when trx_amt=888 then '4.Doi'
when trx_amt=1288 then '5.DoubleFly'
else '6.other'
end as ser_typ
,count(1) as trx_cnt
,date(min(trx_time)) first_date
from 
cmb_usr_trx_rcd
where usr_id='5201314520' and mch_nm='红玫瑰按摩保健休闲'
group by ser_typ
order by 1
2024-11-10 分类(1)姿势太多很过分,分类要用CaseWhen 
select
case when trx_amt=288 then '1.WithHand'
when trx_amt=388 then '2.WithMimi'
when trx_amt=588 then '3.BlowJobbie'
when trx_amt=888 then '4.Doi'
when trx_amt=1288 then '5.DoubleFly'
else '6.other'
end as ser_typ
,count(1) as trx_cnt
,min(trx_time) as first_date
from 
cmb_usr_trx_rcd
where usr_id='5201314520' and mch_nm='红玫瑰按摩保健休闲'
group by ser_typ
order by 1
2024-11-10 分类(1)姿势太多很过分,分类要用CaseWhen 
select
case when trx_amt=288 then '1.WithHand'
when trx_amt=388 then '2.WithMimi'
when trx_amt=588 then '3.BlowJobbie'
when trx_amt=888 then '4.Doi'
when trx_amt=1288 then '5.DoubleFly'
else '6.other'
end as ser_typ
,count(1) as trx_cnt
,max(trx_time) as first_date
from 
cmb_usr_trx_rcd
where usr_id='5201314520' and mch_nm='红玫瑰按摩保健休闲'
group by ser_typ
order by 1
2024-11-10 分类(1)姿势太多很过分,分类要用CaseWhen 
select
case when trx_amt = 288 then '1.Withhand'
when trx_amt = 388 then '2.WithMimi'
when trx_amt = 588 then '3.BlowJobbie'
when trx_amt = 888 then '4.Doi'
when trx_amt = 1288 then '5.DoubleFly'
else '6.other'
end ser_typ
,count(trx_amt) trx_cnt
,min(trx_time) first_date
from cmb_usr_trx_rcd
where mch_nm = '红玫瑰按摩保健休闲'
and usr_id = '5201314520'
group by ser_typ
order by ser_typ
2024-11-10 分类(1)姿势太多很过分,分类要用CaseWhen 
select
case when trx_amt = 288 then '1.Withhand'
when trx_amt = 388 then '2.WithMimi'
when trx_amt = 588 then '3.BlowJobbie'
when trx_amt = 888 then '4.Doi'
when trx_amt = 1288 then '5.DoubleFly'
else '6.other'
end ser_typ
,count(trx_amt) trx_cnt
,min(trx_time) first_date
from cmb_usr_trx_rcd
where mch_nm = '红玫瑰按摩保健休闲'
and usr_id = '5201314520'
group by 1
order by 1
2024-11-10 分类(1)姿势太多很过分,分类要用CaseWhen 
select
trx_amt ser_typ
,count(trx_amt) trx_cnt
,min(trx_time) first_date
from cmb_usr_trx_rcd
where mch_nm = '红玫瑰按摩保健休闲'
and usr_id = '5201314520'
group by 1
order by 1
2024-11-10 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) trx_amt
,count(trx_amt) trx_cnt
,min(trx_time) first_time
from cmb_usr_trx_rcd
whereusr_id = '5201314520'
andtrx_amt >= '288'
group by 1,2
order by 4 desc
2024-11-10 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) trx_amt
,count(trx_amt) trx_cnt
,min(trx_time) first_time
from cmb_usr_trx_rcd
where mch_nm = '红玫瑰按摩保健休闲'
and usr_id = '5201314520'
andtrx_amt >= '288'
group by 1,2
order by 4 desc
2024-11-10 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) trx_amt
,count(trx_amt) trx_cnt
,min(trx_time) first_time
from cmb_usr_trx_rcd
where mch_nm = '红玫瑰按摩保健休闲'
and usr_id = '5201314520'
andtrx_amt >= '288'
2024-11-10 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) first_time
,mch_nm
fromcmb_usr_trx_rcd
where mch_nm = '红玫瑰按摩保健休闲'
and usr_id = '5201314520'
group by 1,3
2024-11-10 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
fromcmb_usr_trx_rcd
where mch_nm = '红玫瑰按摩保健休闲'
and usr_id = '5201314520'
group by 1,3
2024-11-10 分组与聚合函数(5)想知道何时成瘾,用Max Or Min? 
select
usr_id
,max(trx_time)
,mch_nm
fromcmb_usr_trx_rcd
where mch_nm = '红玫瑰按摩保健休闲'
and usr_id = '5201314520'
group by 1,3
2024-11-10 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(trx_amt) total_trx_cnt
,count(distinct usr_id) unique_usr_cnt
,count(trx_amt)/count(distinct(usr_id)) 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 1 
order by avg_trx_per_user desc
limit 5
2024-11-10 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
,sum(trx_amt) total_trx_cnt
,count(distinct(usr_id)) unique_usr_cnt
,sum(trx_amt)/count(distinct(usr_id)) avg_trx_per_user
from cmb_usr_trx_rcd
where date(trx_time) between '2023-01-01' and '2023-06-30'
and mch_nm = '红玫瑰保健按摩休闲'
group by 1
2024-11-10 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(1) 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) in (1, 2, 3, 5, 6, 7) 
group by
    trx_amt 
order by
    trx_cnt desc 
limit 5;
2024-11-10 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) trx_date
,max(trx_amt) max_trx_amt
,min(trx_amt) min_trx_amt
,avg(trx_amt) avg_trx_amt
,sum(trx_amt) total_trx_amt
from cmb_usr_trx_rcd
where mch_nm = '红玫瑰按摩保健休闲'
and date(trx_time) between '2024-09-01' and '2024-09-30'
group by 1
order by trx_date
2024-11-10 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) sum_trx_amt
from cmb_usr_trx_rcd
where year(trx_time) = '2024'
and usr_id = '5201314520'
group by 1
order by sum_trx_amt desc
2024-11-10 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) sum_trx_amt
from cmb_usr_trx_rcd
where year(trx_time) = '2024'
group by 1
order by sum_trx_amt desc