Thanks ever so much Ian. I don't think I would have spotted that. Stephen -----Original Message----- From: Koha <koha-bounces@lists.katipo.co.nz> On Behalf Of Ian Bays Sent: 22 July 2020 10:05 To: koha@lists.katipo.co.nz Subject: Re: [Koha] 856 Field and SQL Query Hi Graham, You are using ">=" in the subfield construct. If you want just the subfield u as URL you should just use "=".  Similarly in the other ExtractValue constructs. All the best. Ian On 22/07/2020 08:20, Stephen Graham wrote:

(sorry if you have received this twice, my email client crashed when I sent yesterday - and not sure if it actually sent)

Hi All - when I try and pull out subfield $u of the 856 field I always get the public note as well (i.e. $z). An example of the query I'm running:

select biblionumber, ExtractValue(metadata,'//datafield[@tag="245"]/subfield[@code>="a"]') AS title,

ExtractValue(metadata,'//datafield[@tag="856"]/subfield[@code>="u"]') as URL from biblio_metadata where

ExtractValue(metadata,'//datafield[@tag="856"]/subfield[@code>="u"]') like '%dawsonera.com%';

This is correct isn't it? I haven't requested $z, so not sure why it is always in the results? Feature? Bug? Or me doing something wrong?

Cheers, Stephen

PS we are on 19.11.

-------------------------------------- Stephen Graham Library Technology Consultant Content and Collections Team Library and Computing Services University of Hertfordshire Tel: 01707 286111 Ext: 77751 Email: s.graham4@herts.ac.uk<mailto:s.graham4@herts.ac.uk>

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-- Ian Bays Director, PTFS Europe Limited Content Management and Library Solutions +44 (0) 7774 995297 (mobile) skype: ian.bays email: ian.bays@ptfs-europe.com _______________________________________________ Koha mailing list http://koha-community.org Koha@lists.katipo.co.nz Unsubscribe: https://lists.katipo.co.nz/mailman/listinfo/koha