Hi folks I'm having trouble with an SQL query: I'd like to bring up a list of serial titles on the system their subscription status (open or closed), BUT not all serials have a subscription record (pre-Koha closed subscriptions) AND all serial items have the item type of SERIAL I thought something like this might work SELECT DISTINCT b.title, IF(s.closed = 0,"OPEN","CLOSED") FROM biblio b, items i LEFT JOIN subscription s ON s.biblionumber = b.biblionumber WHERE b.biblionumber = i.biblionumber AND i.itype = "JOURNAL" ORDER BY b.title but it keeps failing ("Unknown column 'b.biblionumber' in 'on clause'" - if I take out the "ON s.biblionumber = b.biblionumber" bit I get a list but they're all duplicated, one OPEN the other CLOSED, even if they have no subscription record Would anyone be able to help us out with this? With kind regards from the Dalton McCaughey Library Team Carlos Lopez Dalton McCaughey Library | 29 College Crescent, Parkville, VICTORIA 3052 Ph: 03 9340 8888 ext.1 | library@dml.vic.edu.au<mailto:library@dml.vic.edu.au> | library.dmlibrary.org.au