Re: [PDO] Asynchronous requests

[email protected] (Lester Caine) Fri, 20 Nov 2009 10:25:24 +0000
Newsgroups php.pdo
Message-ID <[email protected]>
Johannes Schlüter wrote:
> On Fri, 2009-11-20 at 09:13 +0000, Lester Caine wrote:
>> Lukas - as ever time prevents a full investigation, but it DOES seem to me that 
>> Asynchronous requests does not actually rely on anything in the database driver. 
>> It is simply a php end invention that could potentially be used with any driver?
> 
> Well, you need a non-blocking "query" API and some polling mechanism in
> your database library.

So in some ways it may be linked to running multiple transactions on the same 
connection. But in this case the queries need to be inside the same transaction.
I need to think about this ;)
The whole reason I started with interbase in the 90's was because of its events 
mechanism which provides notification of asynchronous activity and Firebird has 
simply expanded on that.

But to be honest, the normal path is to build queries that simply return the 
data in one hit and make them fast, so having to run several queries is a little 
strange ... unless you need the answer to one before you can proceed to the next 
anyway :)

-- 
Lester Caine - G8HFL
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