Ron St-Pierre wrote:
> Okay, this simple example really exists, but the simple table also
> includes a date that the stock was last traded, so we have:
> stock symbol, stock exchange, high, low, open, close, volume, date, plus
> a few more fields
[snip more details]
> BTW these updates do take longer than we'd like so I would appreciate
> more input on how this setup could be redesigned.
Well, I'd probably make the primary key (stock_id, trading_date) and
just insert into a log table. From there I'd update into a summary
table, or use a view.
Of course, that might make things slower in your case.
--
Richard Huxton
Archonet Ltd