<p>select * from 表 where (LRSJ-WFSJ)*24 &gt;48</p> <p>如果LRSJ和WFSJ设计时不是日期型,那么需要做一次转换</p> <p>select * from 表 where (to_date(LRSJ,'yyyy-mm-dd hh24:mi:ss')-to_date(WFSJ,'yyyy-mm-dd hh24:mi:ss'))*24 &gt;48</p>