选择日期最近有数据一条

vseaf4.4-cyyzs/src/main/resources/mapper/LayeredWaterDao.xml

@@ -21,7 +21,8 @@
         LEFT JOIN WELL_PROCESS_TYPE wpt ON wsd.WELLNAME = wpt.JH and wpt.fwsj <= #{enddate,jdbcType=VARCHAR} and rownum = '1'
         LEFT JOIN sys_unitinfo su ON wsd.UNITCODE = su.UNITCODE
         LEFT JOIN sys_blockinfo sb ON web.QKDM = sb.BLOCKCODE
-        WHERE RECORD_DATE = (SELECT MAX(RECORD_DATE) FROM WELL_SECTION_DAILY where RECORD_DATE <= #{enddate,jdbcType=VARCHAR})
+        WHERE RECORD_DATE >= #{startdate,jdbcType=VARCHAR} AND
+        RECORD_DATE = (SELECT MAX(RECORD_DATE) FROM WELL_SECTION_DAILY where RECORD_DATE <= #{enddate,jdbcType=VARCHAR})
         AND wsd.UNITCODE IN (SELECT unitcode
         FROM SYS_UNITINFO
         START WITH UNITCODE = '30200000'