Sql Row_number和哪里转换低级别的速度以及如何改进？

Question

我的表中有2个数据。我想只访问40个数据。 这里，问题是什么时候被发射下来查询

    select a.* from 
         (select 
               row_number() over (ORDER BY columnid1) as srno,* 
          from table 
          where 
               columnid1 between 1 and 20 
               and  columnid2 like '%A%'
               and  columnid3 between 20 and 25
         ) as a
        where a.srno>=5200 and a.srno<=5240

然后它会在12秒后给出结果。

如何提高访问速度？