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+ /*
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+ 原始数据:
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+ name,login_date
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+ bebee,2019-12-01|2019-12-02|2019-12-04|2019-12-05|2019-12-08
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+ jack,2019-12-03|2019-12-06|2019-12-07
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+
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+ 目标数据:
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+ name login_date
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+ bebee 2019-12-01
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+ bebee 2019-12-02
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+ jack 2019-12-03
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+ bebee 2019-12-04
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+ bebee 2019-12-05
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+ jack 2019-12-06
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+ jack 2019-12-07
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+ bebee 2019-12-08
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+
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+ */
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+
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+ -- 1. 建表
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+ set hive .exec .mode .local .auto= true; -- 开启Hive的本地模式
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+
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+ drop table if exists user_login;
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+ create temporary table user_login(
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+ name string,
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+ login_date string
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+ ) row format delimited fields terminated by ' ,'
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+ stored as textfile
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+ tblproperties(
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+ " skip.header.line.count" = " 1" -- 跳过文件首的1行
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+ -- "skip.footer.line.count"="n" --跳过文件尾的n行
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+ );
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+
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+ load data local inpath ' /tmp/sgr/user_login.csv' into table user_login;
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+
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+ -- 2. 处理
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+ select a .name ,b .login_date
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+ from user_login a
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+ lateral view explode(split(login_date,' \\ |' )) b AS login_date
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+ order by b .login_date ;
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+
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+
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+
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+
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+
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+
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