|NO.Z.00036|——————————|BigDataEnd|——|Hadoop&Hue.V05|——|Hue.v05|案例实现.v02|
一、实现：步骤一：创建表
### --- 步骤一：创建表
~~~ 将数据存放在ORC文件中~~~ # createtable.hql
hive (tuning)> drop database sale cascade;
hive (tuning)> create database if not exists sale;
create table sale.dimdate_ori(
dt date,
yearmonth int,
year smallint,
month tinyint,
day tinyint,
week tinyint,
weeks tinyint,
quat tinyint,
tendays tinyint,
halfmonth tinyint
)
row format delimited
fields terminated by ",";hive (tuning)> create table sale.sale_ori(
orderid string,
locationid string,
dt date
)
row format delimited
fields terminated by ",";
hive (tuning)> create table sale.saledetail_ori(
orderid string,
rownum int,
goods string,
num int,
price double,
amount double
)
row format delimited
fields terminated by ",";hive (tuning)> create table sale.dimdate(
dt date,
yearmonth int,
year smallint,
month tinyint,
day tinyint,
week tinyint,
weeks tinyint,
quat tinyint,
tendays tinyint,
halfmonth tinyint
) stored as orc;
hive (tuning)> create table sale.sale(
orderid string,
locationid string,
dt date
) stored as orc;hive (tuning)> create table sale.saledetail(
orderid string,
rownum int,
goods string,
num int,
price double,
amount double
)stored as orc;
[root@linux122 ~]# hive -f createtable.hql二、步骤二：导入数据
### --- 步骤二：导入数据
~~~ # 加载数据
hive (tuning)> use sale;
hive (sale)> load data local inpath "/home/hadoop/data/tbDate.dat" overwrite into table dimdate_ori;
hive (sale)> load data local inpath "/home/hadoop/data/tbSale.dat" overwrite into table sale_ori;
hive (sale)> load data local inpath "/home/hadoop/data/tbSaleDetail.dat" overwrite into table saledetail_ori;~~~ # 导入数据
hive (sale)> insert into table dimdate select * from dimdate_ori;
hive (sale)> insert into table sale select * from sale_ori;
hive (sale)> insert into table saledetail select * from saledetail_ori;
[root@linux122 ~]# hive -f loaddata.hql### --- 按年统计销售额
hive (sale)> SELECT year(B.dt) year, round(sum(A.amount)/10000, 2) amount
FROM saledetail A join sale B on A.orderid=B.orderid
group by year(B.dt);
~~输出参数
year amount
2004 326.81
2005 1325.76
2006 1368.1
2007 1671.94
2008 1467.43
2009 632.37
2010 21.09
3274 0.17### --- 销售金额在 10W 以上的订单
hive (sale)> SELECT orderid, round(sum(amount), 2) amount
FROM saledetail
group by orderid
having sum(amount) > 100000;
~~输出参数
orderid amount
HMJSL00009024 119084.8
HMJSL00009958 159126.0### --- 每年销售额的差值
hive (sale)> SELECT year, round(amount, 2) amount, round(lag(amount) over
(ORDER BY year), 2) prioramount
,round(amount - lag(amount) over (ORDER BY year), 2) diff
from (SELECT year(B.dt) year, sum(A.amount) amount
from saledetail A join sale B on A.orderid=B.orderid
group by year(B.dt)
) tmp;
~~输出参数
year amount prioramount diff
2004 3268115.5 NULL NULL
2005 1.325756415E7 3268115.5 9989448.65
2006 1.36809829E7 1.325756415E7 423418.75
2007 1.671935456E7 1.36809829E7 3038371.66
2008 1.46742953E7 1.671935456E7 -2045059.26
2009 6323697.19 1.46742953E7 -8350598.11
2010 210949.66 6323697.19 -6112747.53
3274 1703.0 210949.66 -209246.66### --- 年度订单金额前10位（年度、订单号、订单金额、排名）
~~~ # 方法一
hive (sale)> SELECT dt, orderid, amount, rank
from (SELECT dt, orderid, amount,
dense_rank() over(PARTITION BY dt ORDER BY
amount desc) rank
from (SELECT year(B.dt) dt, A.orderid, sum(A.amount)
amount
from saledetail A join sale B on
A.orderid=B.orderid
GROUP BY year(B.dt), A.orderid
) tmp1
) tmp2
where rank <= 10;
~~输出参数
dt orderid amount rank
2004 HMJSL00001557 23656.79999999997 1
2004 HMJSL00001556 22010.599999999984 2
2004 HMJSL00001349 17147.2 3
2004 HMJSL00001531 16605.6 4
2004 HMJSL00001567 15651.0 5
2004 HMJSL00001562 15429.999999999989 6
2004 HMJSL00000706 15266.0 7
2004 HMJSL00000656 15021.319999999998 8
2004 HMJSL00001568 14444.0 9
2004 HMJSL00000963 14268.800000000001 10~~~ # 方法二
hive (sale)> with tmp as (
SELECT year(B.dt) dt, A.orderid, sum(A.amount) amount
from saledetail A join sale B on A.orderid=B.orderid
GROUP BY year(B.dt), A.orderid
)
SELECT dt, orderid, amount, rank
from (SELECT dt, orderid, amount,
dense_rank() over(PARTITION BY dt ORDER BY
amount desc) rank
from tmp
) tmp2
where rank <= 10;
~~输出参数
dt orderid amount rank
2004 HMJSL00001557 23656.79999999997 1
2004 HMJSL00001556 22010.599999999984 2
2004 HMJSL00001349 17147.2 3
2004 HMJSL00001531 16605.6 4
2004 HMJSL00001567 15651.0 5
2004 HMJSL00001562 15429.999999999989 6
2004 HMJSL00000706 15266.0 7
2004 HMJSL00000656 15021.319999999998 8
2004 HMJSL00001568 14444.0 9### --- 季度订单金额前10位（年度、季度、订单id、订单金额、排名）
~~~ # 方法一
hive (sale)> with tmp as (
select C.year, C.quat, A.orderid, round(sum(B.amount), 2)
amount
from sale A join saledetail B on A.orderid=B.orderid
join dimdate C on A.dt=C.dt
group by C.year, C.quat, A.orderid
)
select year, quat, orderid, amount, rank
from (
select year, quat, orderid, amount,
dense_rank() over (partition by year, quat order
by amount desc) rank
from tmp
) tmp1
where rank <= 10;
~~输出参数
year quat orderid amount rank
2004 1 HMJSL00002525 3113.84 1
2004 3 HMJSL00000609 10730.0 1
2004 3 HMJSL00000600 9031.2 2
2004 3 HMJSL00000606 8880.8 3
2004 3 HMJSL00000571 8570.16 4
2004 3 HMJSL00000610 8094.0 5
2004 3 HMJSL00000574 7540.1 6
2004 3 HMJSL00000561 6981.6 7
2004 3 HMJSL00000615 6946.0 8
2004 3 HMJSL00000616 6509.0 9
2004 3 HMJSL00000627 6164.8 10~~~ # 方法二
hive (sale)> with tmp as(
select year(A.dt) year,
case when month(A.dt) <= 3 then 1
when month(A.dt) <= 6 then 2
when month(A.dt) <= 9 then 3
A.orderid,
round(sum(B.amount), 2) amount
from sale A join saledetail B on A.orderid = B.orderid
group by year(A.dt),
case when month(A.dt) <= 3 then 1
when month(A.dt) <= 6 then 2
when month(A.dt) <= 9 then 3
else 4 end,
A.orderid
)
select year, quat, orderid, amount, rank
from (
select year, quat, orderid, amount,
dense_rank() over (partition by year, quat order
by amount desc) rank
from tmp
) tmp1
where rank <= 10;
~~输出参数~~~ # 方法三：求季度
hive (sale)> select floor(month(dt/3.1)) + 1;
hive (sale)> with tmp as (
select year(A.dt) year, floor(month(A.dt)/3.1) + 1 quat,
A.orderid,
round(sum(B.amount), 2) amount
from sale A join saledetail B on A.orderid=B.orderid
group by year(A.dt), floor(month(A.dt)/3.1) + 1, A.orderid
)
select year, quat, orderid, amount, rank
from (
select year, quat, orderid, amount,
dense_rank() over (partition by year, quat order
by amount desc) rank
from tmp
) tmp1
where rank <= 10;
~~输出参数
year quat orderid amount rank
2004 1 HMJSL00002525 3113.84 1
2004 3 HMJSL00000609 10730.0 1
2004 3 HMJSL00000600 9031.2 2
2004 3 HMJSL00000606 8880.8 3
2004 3 HMJSL00000571 8570.16 4
2004 3 HMJSL00000610 8094.0 5
2004 3 HMJSL00000574 7540.1 6
2004 3 HMJSL00000561 6981.6 7
2004 3 HMJSL00000615 6946.0 8
2004 3 HMJSL00000616 6509.0 9
2004 3 HMJSL00000627 6164.8 10### --- 求所有交易日中订单金额最高的前10位
~~~ # topN问题：
~~~ 基础数据
~~~ 上排名函数
~~~ 解决N的问题hive (sale)> with tmp as (
select A.dt, A.orderid, round(sum(B.amount), 2) amount
from sale A join saledetail B on A.orderid=B.orderid
group by A.dt, A.orderid
)
select dt, orderid, amount, rank
from (
select dt, orderid, amount, dense_rank() over(order by
amount desc) rank
from tmp
) tmp1
where rank <= 10;
~~输出参数
dt orderid amount rank
2007-07-31 HMJSL00009958 159126.0 1
2007-04-24 HMJSL00009024 119084.8 2
2008-01-15 HMJSL00010598 55828.0 3
2007-07-31 HMJSL00009957 52422.0 4
2007-10-09 HMJSL00010216 49800.0 5
2007-07-31 HMJSL00009956 43018.0 6
2007-11-04 HMJSL00010339 42157.6 7
2007-02-07 HMJSL00008593 41902.4 8
2007-09-27 HMJSL00010137 40340.0 9
2005-05-31 HMJSL00003263 38186.4 10### --- 每年度销售额最大的交易日
hive (sale)> with tmp as (
select A.dt, round(sum(B.amount), 2) amount
from sale A join saledetail B on A.orderid=B.orderid
group by A.dt
)
select year(dt) year, max(amount) dayamount
from tmp
group by year(dt);
~~输出参数
year dayamount
2004 160121.08
2005 189984.81
2006 232302.62
2007 309427.1
2008 151134.0
2009 71127.0
2010 28161.8
3274 1703.0~~~ # 备注：以上求解忽略了交易日，以下SQL更符合题意
hive (sale)> with tmp as (
select dt, amount, dense_rank() over (partition by year(dt)
order by amount desc) as rank
from (select A.dt, round(sum(B.amount), 2) amount
from sale A join saledetail B on A.orderid=B.orderid
group by A.dt) tab1
)
select year(dt) as year, dt, amount
from tmp
where rank=1;
~~输出参数
year dt amount
2004 2004-11-01 160121.08
2005 2005-10-03 189984.81
2006 2006-04-29 232302.62
2007 2007-07-31 309427.1
2008 2008-01-20 151134.0
2009 2009-01-24 71127.0
2010 2010-01-01 28161.8
3274 3274-12-12 1703.0### --- 年度最畅销的商品(即每年销售金额最大的商品)
hive (sale)> with tmp as (
select year(B.dt) year, goods, round(sum(amount),2) amount
from saledetail A join sale B on A.orderid=B.orderid
group by year(B.dt), goods
)
select year, goods, amount
from (select year, goods, amount, dense_rank() over
(partition by year order by amount desc) rank
from tmp) tmp1
where rank = 1;
~~输出参数
year goods amount
2004 JY424420810101 53401.76
2005 24124118880102 56627.33
2006 JY425468460101 113720.6
2007 JY425468460101 70225.1
2008 E2628204040101 98003.6
2009 YL327439080102 30029.2
2010 SQ429425090101 4494.0
3274 YA217390232301 698.0Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart
——W.S.Landor
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