Re: PreparedStatement parameters and mutable objects

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От
Paul Thomas
Тема
Re: PreparedStatement parameters and mutable objects
Дата
Msg-id
20040111235737.C15827@bacon
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Дерево обсуждения
PreparedStatement parameters and mutable objects Oliver Jowett <oliver@opencloud.com>
Re: PreparedStatement parameters and mutable objects Dave Cramer <pg@fastcrypt.com>
Re: PreparedStatement parameters and mutable objects Oliver Jowett <oliver@opencloud.com>
Re: PreparedStatement parameters and mutable objects Dave Cramer <pg@fastcrypt.com>
Re: PreparedStatement parameters and mutable objects Oliver Jowett <oliver@opencloud.com>
Re: PreparedStatement parameters and mutable objects Kris Jurka <books@ejurka.com>
Re: PreparedStatement parameters and mutable objects Dave Cramer <pg@fastcrypt.com>
Re: PreparedStatement parameters and mutable objects Andrew Rawnsley <ronz@ravensfield.com>
Re: PreparedStatement parameters and mutable objects Dave Cramer <pg@fastcrypt.com>
Re: PreparedStatement parameters and mutable objects Andrew Rawnsley <ronz@ravensfield.com>
Re: PreparedStatement parameters and mutable objects Oliver Jowett <oliver@opencloud.com>
Re: PreparedStatement parameters and mutable objects Paul Thomas <paul@tmsl.demon.co.uk>
Re: PreparedStatement parameters and mutable objects Oliver Jowett <oliver@opencloud.com>
Re: PreparedStatement parameters and mutable objects Paul Thomas <paul@tmsl.demon.co.uk>
Re: PreparedStatement parameters and mutable objects Oliver Jowett <oliver@opencloud.com>
Re: PreparedStatement parameters and mutable objects Dave Cramer <pg@fastcrypt.com>
Re: PreparedStatement parameters and mutable objects Kris Jurka <books@ejurka.com>
Re: PreparedStatement parameters and mutable objects Oliver Jowett <oliver@opencloud.com>
Re: PreparedStatement parameters and mutable objects Dave Cramer <pg@fastcrypt.com>
Re: PreparedStatement parameters and mutable objects Oliver Jowett <oliver@opencloud.com>
Re: PreparedStatement parameters and mutable objects Dave Cramer <pg@fastcrypt.com>
Re: PreparedStatement parameters and mutable objects Barry Lind <blind@xythos.com>
Re: PreparedStatement parameters and mutable objects Barry Lind <blind@xythos.com>
Re: PreparedStatement parameters and mutable objects Oliver Jowett <oliver@opencloud.com>
Re: PreparedStatement parameters and mutable objects Barry Lind <blind@xythos.com>

On 11/01/2004 22:40 Oliver Jowett wrote:
> [snip]
> I'm still in favour of an "undefined behaviour" interpretation here. 
> There's not much benefit to application code in nailing down one 
> behaviour or the other, and leaving it undefined gives the driver the 
> flexibility to do whichever is a better implementation for the DB in 
> question.

Having followed this very interesting thread, I'm still wondering exactly 
how much measurable improvement could be achieved. I read an article on 
IBM developerWorks (sorry can't remember the URL) which stated that, on 
modern VMs, things like object creation aren't the performance bogeys that 
they once were. So I'm thinking that before we make a decision about 
committing to a change which might break someones app, is there any way by 
which we could measure the effects of the proposed change? 
> I might send a query to the JDBC expert group about this.

I, for one, would be interested to know.


-- 
Paul Thomas
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