Figura 1 – Tabela AREA Considerando a tabela apresent

A SELECT A1.NOME, A2.NOME FROM A1 IS AREA, A2 IS AREA WHERE A1.ID = A2.ID;  B SELECT NOME, A2.NOME FROM AREA, AREA A2 WHERE ID_AREA_SUPERIOR = A2.ID AND ID_AREA_SUPERIOR IS NOT NULL; C SELECT A1.NOME, A2.NOME FROM AREA AS AREA_SUB, AREA AS A2 WHERE A1.ID_AREA_SUPERIOR = A2.ID_AREA_SUPERIOR;  D SELECT A1.NOME, A2.NOME FROM AREA A1, AREA A2 WHERE A2.ID_AREA_SUPERIOR = A1.ID AND A1.ID_AREA_SUPERIOR IS NULL;  E SELECT A1.NOME, A2.NOME FROM AREA AS A1, AREA AS A2 WHERE A1.ID_AREA_SUPERIOR = A2.ID;