Neil & Lester

Thanks for the assistance - I think in the interim I will go with
replication of the rules db to each physical host, but I am definitely going
to follow up the product link below (I had a look this morning and it
definitely seems ideal, but I need to work on my knowledge of matters .NET
before I give it a try).


Rory McKinley
Nebula Solutions
+27 82 857 2391
"There are 10 kinds of people in this world,
those who understand binary and those who don't" (Unknown)
----- Original Message ----- 
From: "Neil Smth" <[EMAIL PROTECTED]>
Sent: Thursday, October 16, 2003 12:07 AM
Subject: [PHP-DB] Re: Querying tables on multiple hosts in a single query1

> I found this
> Does it look like a workable solution (paritioning by customer was one of
> the applications mentioned). The 30 day trial looks worth a shot, they
> licensing of $450 per host.
> Cheers - Neil Smith.
> >Message-ID: <[EMAIL PROTECTED]>
> >From: "Rory McKinley" <[EMAIL PROTECTED]>
> >Date: Wed, 15 Oct 2003 16:41:41 +0200
> >MIME-Version: 1.0
> >Content-Type: multipart/alternative;
> >         boundary="----=_NextPart_000_0116_01C3933B.3635B9B0"
> >Subject: Querying tables on multiple hosts in a single query
> At 17:54 15/10/2003 +0000, Rory wrote:
> >Originally, we kept all the DBs on a single database. However, of late, I
> >decided to split the customer data as some customers have GB of data and
> >take a lot longer than others. Therefore, I decided to split the customer
> >databases to multiple boxes each running an installation of MySQL
> >with the rules databases on a seperate machine (also running MySQL
> >4.0.15). The idea being that I would only need to maintain a single copy
> >of each of the rules db which would make updating  and maintenance
> >Unfortunately, this means that the above query then must look like this:
> >
> >INSERT INTO customer_host.customer_db.customer_table_2
> >SELECT a.field_one, b.field_two
> >FROM customer_host.customer_db.customer_table_1 a,
> >rules_host.rules_db.rules_table_1 b
> >WHERE a.field_id = b.field_id
> >
> >Added to this I would have a seperate connection for each of the customer
> >db and the rules db.
> >
> >Currently, I have no idea how to achieve the above query given the new
> >situation - mysql_query only accepts a single connection link.
> >
> >Does anyone know if there is anyway that I can perform the above query?
> >
> >If I cannot - I have some alternatives but I hope someone will have a
> >solution.
> -- 
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