oracle 按天天、周、月、季度、年统计

//按天统计,createtime为数据库的date类型，格式为：yyyy-MM-dd hh24:mi:ss select trunc(createtime,'DD') as 日期,count(主键) as 数量 from tablename group by trunc(createtime, 'DD') order by trunc(createtime, 'DD') e.g. sele

>>阅读原文<<