Update record deletes all other fields

I have an update page which updates some fields in the table but not others. It does update the fields I select however the problem is instead of leaving the other fields alone it deletes any information in them from the table. It keeps the primary field (BookingRequestID) but deletes everything else that isn´t mentioned in the update. I have attached the file.

I'll need to troubleshoot directly, see the private message section.

see PM

on the BookingRequestDM_Update.php page, the action is to post to another page:

<form action="BookingRequest_Update.php?BookingRequestID=<?php echo(rawurlencode($row_WADABookingRequest['BookingRequestID'])); ?>" method="post" name="WADAUpdateForm" id="WADAUpdateForm">


change that so the action posts to itself
<form action="BookingRequestDM_Update.php?BookingRequestID=<?php echo(rawurlencode($row_WADABookingRequest['BookingRequestID'])); ?>" method="post" name="WADAUpdateForm" id="WADAUpdateForm">

That was it thank you. - That will teach me to copy a page.

yeah, copying a page is likely to cause unintended error that can be avoided by creating the page from scratch. it often seam like it would be easier, but in reality is anything but...