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YK
SS
SS
4
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yp
4
yp
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SS
4
NK
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select
country.country_id,
country.country,
(
select count(*)
from city
where city.country_id = country.country_id
and country.last_update > '10-10-2000'
and length(city.city) > 6
) as long_name_cities_count
from city join country using (country_id)
group by country.country_id, country.country
4
ЧЦ
SS
SS
SS
4
4