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 

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