摘要: word count select word,count(*) from( select explode(split(sentence,' ')) as word from article )t group by word; split:数据切分为数组 explode:行转列 统计每个用户购买过多少 阅读全文
posted @ 2020-04-02 18:03 AI_Engineer 阅读(268) 评论(0) 推荐(0)