I don't understand much about SQL, but even I know it's not supposed to be done like this...
CREATE TABLE prg_knowledge (
creating_date timestamp with time zone,
changing_date timestamp with time zone,
timestampfield01 timestamp with time zone,
timestampfield02 timestamp with time zone,
Oh, and I picked up a new DSL modem from my provider this morning. M-Net probably is a bit more expensive than their competitors, but their service is outstanding.