Does anyone have any idea which is generally better (by better I mean most efficient/quickest!) in this simple scenario? I have a temporary table which I wish to retain for the duration of a long-running session. However, for each transaction it must be purged. So, is it better to; a) Always CREATE TEMPORARY TABLE + ON COMMIT DROP for every transaction or; b) TRUNCATE TABLE or; c) ON COMMIT DELETE ROWS Both b & c avoid re-creating the table each time but at the cost of an explicit purge of some form. I would assume that despite its name, the latter, example c, is more akin to a truncation? Or does it actually perform a deletion? Cheers Jim -- Jim Vanns Principal Production Engineer Industrial Light & Magic, London
