Question

I have two tables that I want to use for viewing my reports which I can get after inputting a date.

Here are my tables: for customers – customer_date, lastname, firstname

for services – room_number, date_in, date_out

Here is my code now : it seems that it can’t get any rows from my table

<?php 

$conn = mysql_connect("localhost","root","");

mysql_select_db('irm',$conn);

if(isset($_GET['Submit'])){

$customer_date = $_GET['customer_date'];
}

?>
<form method="get">
<table width="252" border="0">
  <tr>
    <td width="98">Choose Date:</td>
    <td width="144"><label>
  <input onclick="ds_sh(this);" name="customer_date" id="customer_date" readonly="readonly" style="cursor: text" />
</label></td>
 </tr>
 <tr>
<td align="right"><input type="submit" value="Submit" /></a></td>
<td></td>
</tr>
</table>
</form>  

<form>
<?php

    $tryshow = "SELECT * FROM customers,services WHERE customer_date = '$customer_date' ";

    $result = @mysql_query($tryshow,$conn)
            or die("cannot view error query"); 

    if (mysql_num_rows($result) == 0) {
    echo "No rows found, nothing to print...";
}
while($row=mysql_fetch_assoc($result)){
?>
<table width="700" border="0">
    <tr>
      <td width="100">Customer Date:</td>
      <td width="100">Last Name</td>
      <td width="100">First Name</td>
      <td width="100">Room Number</td>
      <td width="100">Date In</td>
      <td width="100">Date Out</td>
    </tr>
    <tr>
      <td><?php echo $row["customer_date"]; ?></td>
      <td><?php echo $row['lastname']; ?></td>
      <td><?php echo $row['firstname']; ?></td>
      <td><?php echo $row['room_number']; ?></td>
      <td><?php echo $row['date_in']; ?></td>
      <td><?php echo $row['date_out']; ?></td>
   </tr>
  </table>
<?php }?>
</form>

With this I can get a report of any customer who checks in on that date.

I need some advice. Hope you can answer me soon.

Answer 1

You need to relate the two tables with a JOIN. Based on the information given, customers.customer_date to services.date_in seems to be the most likely candidate. This assumes that the date columns hold only a date and not a date/time.

Also notice that I’m not using select * in my query and neither should you. 😉

SELECT c.customer_date, c.lastname, c.firstname,
       s.room_number, s.date_in, s.date_out
    FROM customers c
        INNER JOIN services s
            ON c.customer_date = s.date_in
    WHERE c.customer_date = '$customer_date'