Teressa Keenan asked:
> I have a file of publisher records that I am using MarcEdit to update
> prior to loading them to our catalog.  The records have multiple 856
> fields like this:
> 
> =856  40$uhttp://dx.doi.org/10.1007/0-306-47949-4$zConnect to this
> title online.
> =856  41$3Table of
> contents$uhttp://www.loc.gov/catdir/toc/fy035/2002034181.html
> =856  42$3Publisher
> description$uhttp://www.loc.gov/catdir/enhancements/fy0813/2002034181-
> d.html
> 
> I need to add a prepend for our proxy server to the 856 40 $u only.
> There is no need to add the prepend to the links for the table of
> contents or the publisher description. Is there a way to have MarcEdit
> only make the change to one 856 per record or will it have to change
> all of them.

I'm going to answer in general terms rather than the specific MarcEdit procedure.  In the above example, you have two ways of telling which field you want to add the prefix to.  First, it has indicators of 40 instead of 41 or 42.  So you could simply replace "40$u" with "40$u" followed by your prefix.  If you have some records with multiple 856 40 fields and only want to add the prefix to one of them, then you could replace "40$uhttp://dx.doi.org" with "40$uYOURPREFIXHEREhttp://dx.doi.org".  That's assuming that all the fields you want to replace have dx.doi.org, of course.

> Additionally if we were to determine we want to delete the extra 856
> fields and only keep the one that actually links to the full text of
> the item.  Is there a way to delete those while saving the one we want
> to keep?

Sure, just delete the ones with indicators 41 or 42.  If you also have other fields with 856 40 that you want to get rid of, you could change the one you want to keep (e.g. containing "dx.doi.org") into a 956, delete all remaining 856, then move the 956 back to 856.

					Steve McDonald
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