select max(count) - (select max(count) from tablea where count<(select max(count) from tablea where name = 'reikoo') and name like 'reikoo') from tablea where name = 'seikoo'
select aa-ab from (select max(count) aa from tableA where name='seikoo') e, (select max(count) ab from tableA where count < (select max(count) from tableA where name='seikoo') and name='seikoo') d
(select max(count)
from tablea
where count<(select max(count) from tablea where name = 'reikoo') and name like 'reikoo') from tablea where name = 'seikoo'
(select max(count) aa
from tableA where name='seikoo') e,
(select max(count) ab from tableA
where count < (select max(count) from tableA where name='seikoo') and name='seikoo') d