On Mon, 5 Apr 2004, Kevin Barnard wrote:
> On 5 Apr 2004 at 12:05, Rosser Schwarz wrote:
>
> > Just this morning, however, I created a copy of the target table (all
> > 4.7M rows), with absolutely no foreign keys referring to it, and ran
> > the update against the copy. That update took 2300 seconds. The
> > join columns were indexed in both cases.
>
> Have you added indexes for the custid column for tables account.acct accunt.orgacct
> and note?
>
> I haven't followed the entire thread but it you have cascading FK on those tables
> without an index on the column that could cause your delay.
also make sure the fk/pk types match, or the index likely won't get used
anyway.
