You can also use the position marker in the xpath to pick an arbitrary number of subject headings:
GROUP_CONCAT(DISTINCT ExtractValue(m.marcxml,'//datafield[@tag="650"][position()=1]/subfield[@code="a"]'),' BR ',ExtractValue(m.marcxml,'//datafield[@tag="650"][position()=2]/subfield[@code="a"]'),' BR ',ExtractValue(m.marcxml,'//datafield[@tag="650"][position()=3]/subfield[@code="a"]') SEPARATOR ' BR ') AS 'Subject' On Tue, Apr 14, 2015 at 1:17 PM, Nick Clemens <n...@quecheelibrary.org> wrote: > I think the problem is that return from ExtractValue returns only one item > so the GROUP_CONCAT is only seeing one thing come in and doesn't add the > separator: > > See this: > > http://stackoverflow.com/questions/10808149/mysql-use-extractvaluexml-value-values-to-get-all-multiple-values-split-on > > On Tue, Apr 14, 2015 at 11:05 AM, Nicole Engard <neng...@gmail.com> wrote: > >> Hi all, >> >> I'm working on this report and I want there to be a BR between each >> distinct 650a - but for some reason it's not working. I worked on this >> in channel for a while and you can see the log here: >> http://irc.koha-community.org/koha/2015-04-14#i_1663170 >> >> Here's the report: >> >> >> Select b.biblionumber, GROUP_CONCAT(DISTINCT ExtractValue(m.marcxml, >> '//datafield[@tag="650"]/subfield[@code="a"]') SEPARATOR ' BR ') AS >> 'Subject',i.itype AS 'IType' >> FROM biblio b >> LEFT JOIN biblioitems m using (biblionumber) >> left join items i using (biblioitemnumber) >> WHERE i.location in >> >> ('ARCHIVES','ARCHSIZE','HISTORYMED','HISTMEDOVZ','HISTMEDREF','RAREBKROOM','RAREOVRSIZ') >> and i.itype != 'JOURNAL' and ExtractValue(m.marcxml, >> '//datafield[@tag="650"]/subfield[@code="a"]') is not null and >> ExtractValue(m.marcxml, '//datafield[@tag="650"]/subfield[@code="a"]') >> != '' >> group by i.biblionumber >> ORDER BY b.biblionumber >> >> >> >> Thanks in advance! >> Nicole >> _______________________________________________ >> Koha mailing list http://koha-community.org >> Koha@lists.katipo.co.nz >> http://lists.katipo.co.nz/mailman/listinfo/koha >> > > > > -- > Nick Clemens > Quechee & Wilder Libraries > n...@quecheelibrary.org > http://www.QuecheeLibrary.org > Q (802) 295-1232 W (802) 295-6341 > -- Nick Clemens Quechee & Wilder Libraries n...@quecheelibrary.org http://www.QuecheeLibrary.org Q (802) 295-1232 W (802) 295-6341 _______________________________________________ Koha mailing list http://koha-community.org Koha@lists.katipo.co.nz http://lists.katipo.co.nz/mailman/listinfo/koha
