Items duplicating on the form

[BasiM]

Hi
 
Hope someone can help me.
 
 
I have two tables from the database.  1 table - patient and the 2nd table - medical aid
I want to extract data from both table. The query runs but it duplicates the data in the table.
 
I am not sure what I have done wrong.
 
Here is the code

                                         <?php


                          echo "<table border='1' align='center' cellspacing='0' width='650px' cellspacing='0'> <tr><th>Surname</th>                                           <th>Name</td> <th>ID Number</th> <th>Contact Numbet</th><th >Medical Aid Scheme</th><th>Medical Aid                                        Number</th></th></tr>";

                                                     //connect to database
                                                    $connection = mysql_connect('localhost','root','') or die ("Couldn't connect to server.");
                                                    $db = mysql_select_db('medionline', $connection) or die ("Couldn't select database.");


  $query = 'SELECT                                                                                                                              patient.name,patient.surname,patient.id_number,medical_aid.medical_aid_scheme,medical_aid.medical_aid_number
FROM patient,medical_aid
WHERE patient.id_number = medical_aid.id_number
ORDER BY patient_id';


$result = mysql_query($query) or die("Couldn't execute query. ". mysql_error());
while($row = mysql_fetch_array($result))
{
$id = $row['id_number'];
echo "<tr ><td>";
echo $row['surname'];
echo "</td><td>";
echo $row['name'];
echo "</td><td>";
echo $row['id_number'];
echo "</td><td>";
echo $row['medical_aid_scheme'];
echo "</td><td>";
echo $row['medical_aid_number'];
echo "</td><td>";
echo "</tr>";
}
echo"</table>";
mysql_close();

?>

[AdRock]

Why don't you join the 2 tables using a JOIN

$query = 'SELECT 
patient.name,patient.surname,patient.id_number,medical_aid.medical_aid_scheme,medical_aid.medical_aid_number                                                                                                                           patient.name,patient.surname,patient.id_number,medical_aid.medical_aid_scheme,medical_aid.medical_aid_number
FROM patient INNER JOIN medical_aid ON patient.id_number = medical_aid.id_number
ORDER BY patient_id';

[Ch0cu3r]

The query is returning all records where the patient's id_number matches the id_number in the medical_aid table. So if a patient has two or more records in the medical_aid table you'll see their name, surname and id printed two or more times in the table, but the medical id and medical scheme will be different.

 

If you only want to see the patients name, surname and id printed once but have their medical aids listed then you'll need to add more logic to your while loop when displaying the patients records

Edited October 31, 2013 by Ch0cu3r