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CREATE TABLE Alunos ( matricula INT PRIMARY KEY, nome VARCHAR(100), idade INT, cidade VARCHAR(100) ); INSERT INTO Alunos (matricula, nome, idade, cidade) VALUES (1, 'Jose', 25, 'Caxias'), (2, 'Maria', 30, 'Niteroi'), (3, 'Joao', 19, 'Sorocaba'), (4, 'Joana', 32, 'Rio de Janeiro'); SELECT * FROM Alunos; select count(cidade) from Alunos;

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