sql 按天然周,月,季度,年统计

参见兄弟的博客http://yuanyong.iteye.com/blog/451383 很不错哦。呵呵 //按天然周统计 select to_char(date,'iw'),sum() from where group by to_char(date,'iw') //按天然月统计 select to_char(date,'mm'),sum() from where group by to_cha
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