How can the second query be modified to incorporate the PLZ values and improve the accuracy of the search results?

The second query can be modified to incorporate the PLZ values by adding a WHERE clause that includes the PLZ values in the search criteria. This will help narrow down the search results and improve the accuracy of the query. By specifying the PLZ values in the WHERE clause, the query will only return records that match the specified PLZ values. 

// Modify the second query to incorporate the PLZ values
$query = "SELECT * FROM customers WHERE city = 'Berlin' AND plz IN (10115, 10117, 10119)";

$result = mysqli_query($connection, $query);

if(mysqli_num_rows($result) > 0) {
    while($row = mysqli_fetch_assoc($result)) {
        echo "Name: " . $row['name'] . " - PLZ: " . $row['plz'] . "<br>";
    }
} else {
    echo "No results found.";
}

Keywords

SQL query PHP PLZ values search results accuracy

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