Isso deve retornar as linhas que você deseja, com base no
num
coluna:SELECT Name, lastName, address, people.conID, postNum, region
FROM people
JOIN countries
ON people.conID = countries.conID
WHERE num=1
num
coluna:SELECT Name, lastName, address, people.conID, postNum, region
FROM people
JOIN countries
ON people.conID = countries.conID
WHERE num=1