在 SAP HANA 表中使用按小時分組
你可以嘗試此方法將時間轉換成日期和小時格式 −
select to_varchar(time, 'YYYY-MM-DD'), hour(time), sum(r_time) as r_time, sum(p_time) as p_time from t1 group by date(time), hour(time) order by to_varchar(time, 'YYYY-MM-DD'), hour(time);
你也可以嘗試使用 Series_Round() 和 group by 子句。
select SERIES_ROUND(time, 'INTERVAL 1 HOUR') as time, sum(r_time) as r_time, sum(p_time) as p_time from t1 group by SERIES_ROUND(time, 'INTERVAL 1 HOUR') order by SERIES_ROUND(time, 'INTERVAL 1 HOUR');
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