[Koha] Extracting Marc Tag 245b for remainder of title in Access

[BRANNON, CHRISTOPHER]

Hey folks.  I'm trying to build a report in Access (don't ask me why).  I know in Koha, I can use ExtractValue(bi.marcxml, '//datafield[@tag="245"]/subfield[@code="b"]') to get the remainder of the title in the Marc record.  However, ExtractValue isn't a function in Microsoft Access.  Anyone know of an equivalent method for retrieving this piece of information in an Access report?

Christopher Brannon
Coeur d'Alene Public Library