sql解析，日期 trunc sysdate

SELECT jh rpc,hs rhs,(SELECT SUM(jh) AS total_hsFROM aqks.aa_scyjWHERE rq >= TRUNC(SYSDATE, 'MM')  -- 本月第一天AND rq < TRUNC(SYSDATE) AND dwdm = #{dwdm} ) ypc,(SELECT SUM(hs) AS total_hsFROM aqks.aa_scyjWHERE rq >= TRUNC(SYSDATE, 'MM')  -- 本月第一天AND rq < TRUNC(SYSDATE) AND dwdm = #{dwdm} ) yhs,(SELECT avg(njh) AS total_hsFROM aqks.aa_scyjWHERE rq >= TRUNC(SYSDATE, 'YYYY')  -- 本年第一天AND rq < TRUNC(SYSDATE) AND dwdm = #{dwdm} ) npc,(SELECT SUM(hs) AS total_hsFROM aqks.aa_scyjWHERE rq >= TRUNC(SYSDATE, 'YYYY')  -- 本年第一天AND rq < TRUNC(SYSDATE) AND dwdm = #{dwdm} ) nhs,nsy,nlhs - nsy AS ncz,jh - hs AS ycz FROM  aqks.aa_scyj WHERE rq = to_date(#{rq},'yyyy-MM-dd') AND dwdm = #{dwdm}

TRUNC(SYSDATE, 'MM') ：

 

 

 rq传递过来的是字符串，要是有to_data转换为时间类型