PHP - Joining data from 2 Tables

Person, I am new to the Forum I would like to ask for the first help. To summarize: I am developing a call system, where it joins data from other systems.

I would like to display all data from 2 sql tables in a php tab, every row exists information from a table.

• table 1
• table 2
• table 1
• table 2

I only found information about join, but that would not help me because it joins the data in the same column, and I would like separate rows for each table in the database.

I'm doing this:

<?php       
$servidor = "localhost"; /*maquina a qual o banco de dados está*/
$banco = "xxxx"; /*seleciona o banco a ser usado*/
$usuario = "root"; /*usuario do banco de dados MySql*/
$senha = ""; /*senha do banco de dados MySql*/

$conexao = mysql_connect($servidor,$usuario,$senha);
/*Conecta no bando de dados MySql*/
mysql_select_db($banco);
/*seleciona o banco a ser usado*/
$res = mysql_query("SELECT * FROM base_itg, base_spn");
/*Executa o comando SQL, no caso para pegar todos os chamados  e retorna o valor da consulta em uma variavel ($res)  */
?>

and then put on the screen

                while($escrever=mysql_fetch_array($res)){
                    $id = $escrever['id'];  /*Escreve cada linha da tabela*/
                    echo "<tr>  
                            <td> <a href = 'detalhe.php?id=$id' target =_blank>" . $escrever["bl_situacao"] . "</td>
                            <td>" . $escrever["bi_sistema"] . "</td>
                            <td>" . $escrever["bl_local_atendimento"] . "</td>
                            <td>" . $escrever["bl_uf"] . "</td>
                            <td>" . $escrever["bl_chamado"] . "</td>
                            <td>" . $escrever["bl_criado_em"] . "</td>
                            <td>" . $escrever["bl_resumo"] . "</td>
                        </tr>";
                     echo "<tr> 
                            <td> <a href = 'pages/detalhados/spn.php?id=$id' target =_blank>" . $escrever["bs_status"] . "</td>
                            <td>" . $escrever["bs_sistema"] . "</td>
                            <td>" . $escrever["bs_sistema"] . "</td>
                            <td>" . $escrever["bs_sistema"] . "</td>
                            <td>" . $escrever["bs_sistema"] . "</td>
                            <td>" . $escrever["bs_sistema"] . "</td>
                            <td>" . $escrever["bs_sistema"] . "</td>

                        </tr>";
                }/*Fim do while*/

I can show the data simultaneously, but with an error, it gets duplicated.

If adding the data of the two tables I have 4 items, it shows 8.