PostgreSQL實現按年、月、日、周、時、分、秒的分組統(tǒng)計
發(fā)布日期:2022-07-15 19:46 | 文章來源:站長之家
按年查詢
select to_char(date::DATE, 'YYYY') as year,sum(shares) as shares, sum(visits) as visits from database_table where date >= '2019-01-01' and date <= '2020-01-01' group by year order by year

按月查詢
select to_char(date::DATE, 'YYYY-MM') as month,sum(shares) as shares, sum(visits) as visits from database_table where date >= '2019-01-01' and date <= '2020-01-01' group by month order by month

按周查詢
select to_char(date::DATE-(extract(dow from date::TIMESTAMP)-1||'day')::interval, 'YYYY-mm-dd') week, sum(shares) as shares, sum(visits) as visits from database_table where date >= '2019-01-01' and date <= '2020-01-01' group by week order by week

按天查詢
select to_char(date::DATE, 'YYYY-MM-DD') as day,sum(shares) as shares, sum(visits) as visits from database_table where date >= '2019-01-01' and date <= '2020-01-01' group by day order by day

按小時查詢
select to_char(date::DATE, 'YYYY-MM-DD HH24') as hour,sum(shares) as shares, sum(visits) as visits from database_table where date >= '2019-01-01' and date <= '2020-01-01' group by hour order by hour

按分鐘查詢
select to_char(date::DATE, 'YYYY-MM-DD HH24:MI ') as minute,sum(shares) as shares, sum(visits) as visits from database_table where date >= '2019-01-01' and date <= '2020-01-01' group by minute order by minute

按秒查詢
select to_char(date::DATE, 'YYYY-MM-DD HH24:MI:SS ') as second,sum(shares) as shares, sum(visits) as visits from database_table where date >= '2019-01-01' and date <= '2020-01-01' group by second order by second

以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支持本站。
版權聲明:本站文章來源標注為YINGSOO的內容版權均為本站所有,歡迎引用、轉載,請保持原文完整并注明來源及原文鏈接。禁止復制或仿造本網站,禁止在非maisonbaluchon.cn所屬的服務器上建立鏡像,否則將依法追究法律責任。本站部分內容來源于網友推薦、互聯網收集整理而來,僅供學習參考,不代表本站立場,如有內容涉嫌侵權,請聯系alex-e#qq.com處理。
相關文章
關注官方微信