select * from voc_vals date_format(create_time, '%Y%m%d%H') = ${time} and val > ${startVal} insert into voc_vals (x, y, val, create_time) values (${x}, ${y}, ${val}, ${createTime}); insert into voc_vals (x, y, val, create_time) values (#{item.x},#{item.y},#{item.val},#{item.createTime}) delete from voc_vals where create_time < date_sub(now(), interval 1 year);