每日日报2021.9.28
完成内容：
1.编写2019 级课堂测试试卷-HIVE 数据分析
统计代理商2
insert overwrite table leiyu3 select day_id as day_id ,sale_nbr as sale_nbr,count(*) from leilei where sale_nbr like 'O%' group by day_id,sale_nbr;
统计代理商4
create table daiout as select day_id as day_id,sale_nbr as sale_nbr,sum(cnt)as cnt,sum(round)as round from leilei where sale_nbr like 'O%' group by day_id,sale_nbr;
create table daiin as select day_id as day_id,buy_nbr as buy_nbr,sum(cnt)as cnt,sum(round)as round from leilei where buy_nbr like 'O%' group by day_id,buy_nbr;
create table leiyu4 as select daiin.day_id as day_id,daiout.sale_nbr as sale_nbr,daiin.cnt as incnt,daiin.round as inround,daiout.cnt as outcnt,daiout.round as outround,daiout.round-daiin.round as li from daiin join daiout on (daiin.buy_nbr=daiout.sale_nbr);
依次导出
bin/sqoop export \
--connect jdbc:mysql://centos01:3306/lalala \
--username root \
--password 000000 \
--table leiyu2 \
--num-mappers 1 \
--export-dir /user/hive/warehouse/leiyu2 \
--input-null-string '\\N' \
--input-null-non-string '\\N' \
--input-fields-terminated-by "\t"
