年によってmysqlの。月、週、日、時間の統計情報

https://www.cnblogs.com/jpfss/p/8759232.html

https://blog.csdn.net/u014518337/article/details/88417741

select DATE_FORMAT(gmt_created,'%H:00') hours, count(id) count from ticket_ticketrecord group by hours;
select DATE_FORMAT(gmt_created,'%H:00') hours, count(id) count from ticket_ticketflowlog group by hours;
select DATE_FORMAT(gmt_created,'%Y-%m-%d') days, count(id) count from ticket_ticketrecord group by days;