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create table aluno( id_aluno int not null, ra int not null unique, nome varchar (100) not null, constraint PK_id_aluno primary key(id_aluno) ); create table prova ( id_prova int not null, nota decimal(3, 1), id_aluno INT not null, constraint pk_id_prova PRIMARY KEY(id_prova), constraint fk_id_aluno FOREIGN KEY (id_aluno) REFERENCES aluno(id_aluno) );
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