Ben Carbery wrote: > Hi, I have some sql like so: > > SELECT min(date) INTO d FROM interest_rate WHERE m_code = NEW.code; > UPDATE interest_rate SET date = NEW.start_date, rate = NEW.initial_rate > WHERE m_code = NEW.code AND date = d; > > Actually this is pgsql but I don't think that matters. > > I am wondering if I can make this more compact by somehow including the > 'min' function in the WHERE clause, but WITHOUT simply moving the select in > there. So not this.. > > UPDATE interest_rate SET date = NEW.start_date, rate = NEW.initial_rate > WHERE m_code = NEW.code AND date = (SELECT min(date) FROM interest_rate > WHERE m_code = NEW.code); > > This is just an example but I seem to find this pattern a lot in my > functions.
I think you want the HAVING clause of SELECT. -- Bruce Momjian <br...@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + It's impossible for everything to be true. + -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
