Q612014 - FGV - 2017 - MPE-BA - Analista Técnico - Tecnologia

Considerando as tabelas R e S apresentadas anteriormente, o resultado

seria obtido pela execução do comando SQL:

a) select * from R where not exists (select * FROM S where a=c)
b) select * from R where not exists (select * FROM S where a=d)
c) select * from S where not exists (select * FROM R where a=c)
d) select * from S where not exists (select * FROM R where a=d)
e) select * from R where exists (select * FROM S where b=d)