SELECT id, name, lon, lat, value, time, property, wg100, wg200, wg300, wg500, accuracy FROM thu_accuracy SELECT sum(accuracy)/count(id) AS accuracy FROM thu_accuracy WHERE CONVERT(time, unsigned) >= #{beginTime} SELECT TRIM(ta.name), ta.value, ta.time FROM thu_accuracy AS ta WHERE CONVERT(TRIM(ta.time), SIGNED) >= CONVERT(date_format(#{beginTime}, '%Y%m%d%H%'), SIGNED) AND CONVERT(TRIM(ta.time), SIGNED) <= CONVERT(date_format(#{endTime}, '%Y%m%d%H%'), SIGNED) AND ta.name = #{name} delete from thu_accuracy where id = #{id}