https://blog.lwolf.org/categories/sql/ Recent content in sql on lwolfs blog Hugo -- gohugo.io en-us Tue, 17 Jun 2014 00:00:00 +0000 https://blog.lwolf.org/post/2014-06-17-getting-epoch-date-for-highcharts-from-sqlalchemy/ Tue, 17 Jun 2014 00:00:00 +0000 https://blog.lwolf.org/post/2014-06-17-getting-epoch-date-for-highcharts-from-sqlalchemy/ Short sqlalchemy query to get highcharts ready data from database from datetime field. select count(1), extract(epoch from date_trunc('hour', created_at)) from bid group by extract(epoch from date_trunc('hour', created_at)); db.session .query( extract('epoch', func.DATE(Bid.created_at)).label('dt'), func.count() ) .filter(Bid.ownership == o) .filter(Bid.created_at > days_to_count ) .group_by('dt') .order_by('dt') )