在Hive中,可以使用内置函数from_unixtime将unixtimestamp转换成datetime类型,再使用date_format函数将datetime类型格式化成小时分钟的形式. 具体语句为: select date_format(from_unixtime(unix_timestamp),'HH:mm') as hour_minute from table; 这样就可以将unix_timestamp字段转换成小时分钟的形式并命名为hour_minute字段.
我同意@ChipsLetten 1.-从SQL你可以使用这样的东西: ---- This is the sum for each day SELECT t.DOT, SUM(t.Amount) ---- You can add an extra Column with the SUM by Dates /* t.Dot, t.Category, t.Item, t.Amount , SUM(t.Amount) OVER(PARTITION BY t.Dot ORDER BY t.Dot) [Su