URI Problem 2624 Solution Number of Cities per Customers

URI Problem 2624 Solution Number of Cities per Customers - URI Online Judge Solution

URI Online Judge Solution 2624 Number of Cities per Customers Using PostgreSQL Query Language.

The company board asked you for a simple report on how many cities the company has already reached. To do this you must display the number of distinct cities in the customers table.

Schema

customers
Column	Type
id (PK)	numeric
name	character varying (255)
street	character varying (255)
city	character varying (255)
state	char (2)
credit_limit	numeric

Tables

customers
id	name	street	city	state	credit_limit
1	Nicolas Diogo Cardoso	Acesso Um	Porto Alegre	RS	475
2	Cecília Olivia Rodrigues	Rua Sizuka Usuy	Cianorte	PR	3170
3	Augusto Fernando Carlos Eduardo Cardoso	Rua Baldomiro Koerich	Palhoça	SC	1067
4	Nicolas Diogo Cardoso	Acesso Um	Porto Alegre	RS	475
5	Sabrina Heloisa Gabriela Barros	Rua Engenheiro Tito Marques Fernandes	Porto Alegre	RS	4312
6	Joaquim Diego Lorenzo Araújo	Rua Vitorino	Novo Hamburgo	RS	2314

Output Sample

count

URI 2624 Solution in SQL:


SELECT COUNT(Distinct City) 
FROM Customers

Comments

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