What are potential performance benefits of using JOIN in MySQL queries?
Using JOIN in MySQL queries can improve performance by reducing the number of queries needed to fetch related data from multiple tables. By joining tables together, you can retrieve all the necessary data in a single query, rather than making multiple queries and then combining the results in your application code. This can lead to faster execution times and more efficient use of database resources.
$query = "SELECT orders.order_id, customers.customer_name
FROM orders
JOIN customers ON orders.customer_id = customers.customer_id";
$result = mysqli_query($connection, $query);
// Process the result set
while ($row = mysqli_fetch_assoc($result)) {
echo "Order ID: " . $row['order_id'] . " | Customer Name: " . $row['customer_name'] . "<br>";
}