[Koha] SQL report - Date issues

[Kerrie Stevens]

I have a report that picks out items that have no contents (505) added and also have no date entered. The problem is that the report is picking up materials that do have dates entered in both the 260 or 264 fields, so it is not working 100% correctly.

Can anyone give me some pointers to get it working properly?

SELECT biblioitems.biblionumber, biblio.copyrightdate, biblioitems.marcxml
FROM biblioitems
JOIN biblio
ON biblioitems.biblionumber=biblio.biblionumber
WHERE biblioitems.marcxml not like "%505%" and biblio.copyrightdate is null
ORDER BY biblio.copyrightdate desc

Results that come back includes bibs with date entries in the 260 and 264 fields - why would they be selected as having nothing in the date field, when they clearly do? Eg: both formats: '1958' or '[19--]' might appear in the fields

Thanks for any help you may provide...


Kerrie Stevens
Harvest Bible College