no conditions? there had better be a join condition!!
what time to run it? depends on the machine it's running on, whether there is anything else running on it at the same time, how much memory the machine has, and so on
that said, i'm afraid i cannot help you any further, because i'm not a DBA
you really need your DBA in your organization to answer this question
Last Wiki Answer Submitted: May 6, 2005 11:59 am by 0 pts.