> > Index the table to hell and back
>
> >>Indexing too many fields, or the wrong combinations, can
> >>actualy hurt
> >>performance.
> >>It's best to put a few benchmarks in place, and add a few
> >>indices at a
> >>time.
>
> True.....indexes improve speed of selects
Mostly. Theres no point indexing rar,wibble,foo, if all your where clauses
use rar,foo,theother for instance.
> > Never use SELECT *
>
> >>Unless in your database 'select *' is quicker than 'select
> >>field,wibble,rar'.
>
> As far as I'm aware SELECT * is quicker than selecting all
> fields in your
> table
I'm sure I've heard otherwise...
> but if you don't want all the fields then you should be
> specific as
> this will be quicker.
And result in smaller server memoray usage too.
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