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African Cities EasySQL (Basic) – HackerRank Solution SQL, Best and Optimal Solutions , All you need.
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SQL African Cities EasySQL (Basic) HackerRank Solution
select
ci.name
from
city ci
join country co on (co.code = ci.countrycode)
where
co.continent = 'Africa'
;
SQL (Basic)
SQL (Intermediate)
SQL (Advanced)
Basic Select
Advanced Select
Aggregation
Basic Join
Advanced Join
Alternative Queries
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