[Koha] Multiple record matching rules

[Paul A]

On 2017-09-25 03:31 PM, Christopher Davis wrote:
> Dear Colleagues,
> 
> I know that Koha can match the ISBNs of imported MARC records with the
> ISBNs of existing records, but is there a way to configure a record
> matching rule to try to match more than one match point at a time (for
> example try to match ISBN, then try ISSN, then try LCCN, then try OCLC
> number, then try standard number, then try publisher number)?

Have you tried ==> Administration ==> Record Matching Rules?

We have defined seven rules, mostly the obvious ones e.g. ISBN, ISSN (we 
don't use OCLC -- can't afford them -- and I'm not sure what you call 
'standard number'), author, title, publisher, pub date and manufacture 
date) and then refined them with dates from 008 etc. It takes a little 
time to fine tune the flexibility. It gets a very few false positives 
"Are you sure this isn't a duplicate?" but otherwise appears to be 
extremely reliable.

We dropped LCCN matching -- many of our older books (we're basically an 
international archival library) don't have one, and the regex 
"treatment" of leading spaces, hyphens and suffixes became CPU 
cycle-heavy for minimum joy.

YMMV and HTH. Best -- P.