You can use CROSS JOIN
:
SELECT *
FROM tabela1
CROSS JOIN tabela2
Hello, another idea is to use UNION, but the tables must have the same structure and the same amount of columns, eg:
SELECT *
FROM table1
UNION ALL
SELECT *
FROM table2
or
SELECT t1.id, t1.nome
FROM table1 t1
UNION ALL
SELECT t2.id, t2.nome
FROM table2 t2