<br><br><div class="gmail_quote">On Mon, Jul 13, 2009 at 10:52 AM, Cab Vinton <span dir="ltr"><<a href="mailto:bibliwho@gmail.com">bibliwho@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Thank you, Joe.<br>
<div class="im"><br>
> No, you can pick the fields to be updated. Fields that are not included<br>
> will not be updated. However, note that this is not the same as merging<br>
> data per user per field, with a preference for "more data". The update has<br>
> to "call its shot", in effect saying "these are the fields I am updating".<br>
> This is necessary to allow a field to be overwritten with an empty value<br>
> (for example, a phone number being updated as disconnected).<br>
<br>
</div>OK, so to avoid overwriting a field, all I have to do is make sure<br>
that my CSV file does not have that field.<br>
<br>
Conversely, if I include a field, then that field will be overwritten,<br>
even if it happens to be empty for a particular patron.<br>
<br>
Do I have this right?<br>
</blockquote><div><br>Right. <br></div></div><br>