oracle 中存在to_date和to_char ,一般一位前者对应date类型,后者对应string类型。其实不然。当你使用to_date查询时,即使你用date类型接受,你也会发现结果只有yyyy-mm-dd有数据,时分秒为0。但你改用to_char查询时则能查出正确的结果。
select to_char(s.tm,'yyyy-mm-dd hh24:mi:ss') tm ,s.stcd ,s.waterlevel,s.flow,s.warnFlow,s.warnline,s.b.stnm from( select *from(select r.stcd stcd, r.z waterLevel, r.q flow, r.tm tm,h.WRZ warnLine,h.WRQ warnFlow FROM ST_RIVER_R_HI r left join st_rvfcch_b h
on r.STCD=h.stcd) n where n.STCD=#{_parameter} and n.TM between (select sysdate-1 from dual)
and (select sysdate from dual)) s left join st_stbprp_b b
on s.stcd = b.stcd order by s.tm asc