> > >> > > I =
have a table with 40 million rows and haven't had any performance> &=
gt; > issues yet.> > >> > > Are there any rule=
s of thumb as to when a table starts getting too big?> > >=
> > > For example, maybe if the index size is 6x the amount of ram=
, if the> > > table is 10% of total disk space, etc?> &=
gt; > > My rule here is that a table is too big when performance =
starts > degrading beyond an acceptable level.> > The =
challenge there is that if you wait until performance degrades> beyo=
nd an acceptable level, you've allowed yourself to get into a> situa=
tion where clients are upset and frustrated, and fixing the> problem=
is difficult because there's so much data to manipulate to> rearran=
ge things.> Apologies, I could/should have phrased that better..=
My rule here is that a table is to=
o big when performance starts degrading beyond a MEASURABLE level. :)</font=
>Cheers<font size=
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