Emitting real-time events from database?

[Frank D. Greco]

Are there hooks to most modern databases to allow database events to trigger
events or stream data that can be received by Java/C or other languages?

Back in the early/mid 90's Sybase had Open Server which allowed some C-language
integration, but it never really delivered what large enterprises (esp in
financial services companies) needed.

Any pointers are greatly appreciated.

F

[Ed Prochak]

On Aug 31, 2:25 pm, Frank D. Greco <fgr...@REMOVECrossroadsTechNOSPAM-

Define your "real time" requirement. Do you need millisecond response?
Microsecond? or is a 1minute refresh rate satisfactory?

People sometimes use real time as a jargon phrase without knowing its
meaning. They usually mean "as fast as possible" which is not a well
defined requirement.

Ed

[Robert Klemme]

On 31.08.2009 23:31, Ed Prochak wrote:
> On Aug 31, 2:25 pm, Frank D. Greco <fgr...@REMOVECrossroadsTechNOSPAM-
> FOOBAR.c00m> wrote:
>> Are there hooks to most modern databases to allow database events to trigger
>> events or stream data that can be received by Java/C or other languages?
>>
>> Back in the early/mid 90's Sybase had Open Server which allowed some C-language
>> integration, but it never really delivered what large enterprises (esp in
>> financial services companies) needed.
>

> Define your "real time" requirement. Do you need millisecond response?
> Microsecond? or is a 1minute refresh rate satisfactory?
>
> People sometimes use real time as a jargon phrase without knowing its
> meaning. They usually mean "as fast as possible" which is not a well
> defined requirement.

I second that. Here's the definition:

http://en.wikipedia.org/wiki/Real-time_computing#Hard_and_soft_real-time_systems

Frank, what is is that you want to do?

Cheers

robert

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