error updating field in custom table

[boxes]

i'm working on a way to update some data in a custom table that updates when the cart triggers session_recreate_id

1. i've added the table name customer2_data to database_tables.php (TABLE_CUSTOMER2_DATA)

2. inserted the function name in sessions.php to trigger just before the whos_online_session_recreate($oldSessID, $newSessID);

customerIPfield_session_recreate($oldSessID, $newSessID);
whos_online_session_recreate($oldSessID, $newSessID);

3. added an extra_function that sorta parallels the whos_online_session_recreate function but first checks for the customer's IP, if it finds the customer's IP in the customer2_data customerIP field, then it should update the session id in that table row too:

function customerIPfield_session_recreate($old_session, $new_session) {
  global $db;
  $customer_ip_current = $_SERVER['REMOTE_ADDR'];

$sql = "select customerIP from " . TABLE_CUSTOMER2_DATA . " where customerIP = :customer_ip_current";
$sql = $db->bindVars($sql, ':customer_ip_current', $customer_ip_current, 'noquotestring');
$result = $db->Execute($sql);

if ($result->RecordCount() > 0) {

  $sql = "UPDATE " . TABLE_CUSTOMER2_DATA . "
          SET session_id = :newSessionID 
          WHERE session_id = :oldSessionID
          AND customerIP = :customer_ip_current";
          
  $sql = $db->bindVars($sql, ':newSessionID', $new_session, 'string'); 
  $sql = $db->bindVars($sql, ':oldSessionID', $old_session, 'string'); 
  $sql = $db->bindVars($sql, ':customer_ip_current', $customer_ip_current, 'noquotestring'); 
  $db->Execute($sql);
  
} else {

//
//  
}
   
} 

However, when I add something to the cart and then try to login (triggering session recreate), I get the following error:

1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.56.789' at line 1
in:
[select customerIP from customer2_data where customerIP = 123.34.56.789]

any idea what be the issue? i've tweaked a few things but keep getting the same error

thanks

[DrByte]

Simple. 123.34.56.789 is being treated as a number because you didn't surround it with 'quote' marks. Thus it's failing after it accepts the number of 123.34 and dies at the second decimal point because no "number" contains two decimal points.

[boxes]

thanks so much Dr, on the money