Hi Elaine,
First, the query must use HAVING instead of WHERE,
Date is not a column but an alias to some result.
Second, better to check that Date is not a number
SELECT biblionumber,
SUBSTR(ExtractValue(m.marcxml,'//controlfield[@tag=008]'),8,4) as Date
FROM biblioitems m LEFT JOIN biblio b
I'm halfway there:
SELECT biblionumber,
SUBSTR(ExtractValue(m.marcxml,'//controlfield[@tag=008]'),8,4) as Date
FROM biblioitems m
LEFT JOIN biblio b USING (biblionumber)
WHERE Date = ''
Doesn't quite work. If I omit the last line, it spits out a list of all
our biblios, and the date.
I'd
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