select top 1800 * from AJ_AQJDSB
where id >(
select max(id) from (select top 2000 id from AJ_AQJDSB order by id) b)
select top 1800 * from AJ_gcxx where id not in (select top 2000 id from AJ_gcxx order by id) order by id
select top 1800 * from ( select top 3800 * from AJ_AQJDSB) a order by id desc