/media/sda-magnetic/david/Dok-15-2023-11-27/informatik/www-intel-compute-stick-2022-06-13/026/database.php

<?php 
include ('/home/david/mysqldata.php');

$handle = mysql_connect ("127.0.0.1", $MYSQL_NAME, $MYSQL_PASSWORD);

mysql_select_db ("test026", $handle);

mysql_query ("INSERT INTO abc (name1, name2) VALUES (\"abc\", \"def\"", $handle);

$result = mysql_query ("SELECT * FROM abc JOIN def", $handle);
while ($row = mysql_fetch_assoc ($result))
    echo $row ["name1"] . " " . $row ["name2"] . " " . $row ["name3"] . " " . $row ["name4"] . "<br>\n";
    
$result = mysql_query ("SELECT * FROM abc INNER JOIN def WHERE abc.name1 = def.name3", $handle);
while ($row = mysql_fetch_assoc ($result))
    echo $row ["name1"] . " " . $row ["name2"] . " " . $row ["name3"] . " " . $row ["name4"] . "<br>\n";

mysql_close ($handle);
?>