You're most probably missing a Where clause after the parentensis. see:
-----Original Message----- From: Joel Fradkin [mailto:jfradkin@wazagua.com] Sent: Dienstag, 19. April 2005 16:06 To: pgsql-sql@postgresql.org Subject: [SQL] trying to do an update a bit confused.
update tblcase set merchandisetotal =
(
COALESCE(( SELECT sum(m.quantity::numeric * m.amount) AS merchandiseamount
FROM tblmerchandise m
WHERE m.caseid = tblcase.caseid AND m.clientnum::text = tblcase.clientnum::text), 0.0)
)
WHERE <condtion that selects one record>;
I tried running the above and it wants to do a sum on all the records in tblcase instead of just the one being updated, what am I doing wrong?