一次hive筆試題

題目一： select t1.uid, t1.發過多少日記, t2.獲得多少點贊 from ( select uid， count(*) as 發過多少日記 from T1 group by uid )t1 left join ( select uid, sum(like_uid) as 獲得多少點贊 from T1 join T2 on T1.log_id =T2.log_id group_by

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