ORACLE SQL Диапазон от часове

Предполагам, че сте преобразували формата на часа в hh24:mi

може би това може да помогне:

with tab as(
select 'date1' as dat,  '09:00' as  start_hour, '09:30' as end_hour from dual union all
select 'date1' as dat,  '10:30' as  start_hour, '11:30' as end_hour from dual union all
select 'date1' as dat,  '13:00' as  start_hour, '15:00' as end_hour from dual 
)
SELECT COUNT(*)
  FROM   tab
  WHERE  start_hour <= '09:10' --:new_end_hour
  AND    end_hour   >= '07:00' --:new_start_hour
  AND    dat = 'date1'
  ;

или можете да използвате between за да го проверите start_hour или end_hour ist между стойностите

with tab as(
select 'date1' as dat,  '09:00' as  start_hour, '09:30' as end_hour from dual union all
select 'date1' as dat,  '10:30' as  start_hour, '11:30' as end_hour from dual union all
select 'date1' as dat,  '13:00' as  start_hour, '15:00' as end_hour from dual 
)
SELECT COUNT(*)
  FROM   tab
  WHERE  ('09:00' between start_hour and end_hour
  or    '09:10' between start_hour and end_hour
  )
  AND    dat = 'date1'
  ;

db<>fiddle тук