Of course, since we use DRDA, we would have to see if that protocol supports blob streaming...

Craig

On Aug 31, 2005, at 11:47 AM, David W. Van Couvering wrote:

Again, yes, your help would be very much appreciated!  Check out the code, get on derby-dev, ask questions, we'll be glad to help.

David

Grégoire Dubois wrote:


Perhaps it could help : the DBMS Mckoi ( http://mckoi.com/database/ )
has got a JDBC driver that supports blob streaming over network. Code is
open.

I tried with IBM DB2, and same as Derby, streaming isn't supported with
their JDBC driver. For a so big DBMS, I found it odd.

I'm aiming to try Oracle, but I have some difficulties to use it. Does
anyone knows if the Oracle JDBC supports blob streaming ?

It would be difficult to implement in Derby ? I'm familiar with java
network developpment. I develop in java for 4 years.

Greg

Le mercredi 31 août 2005 à 11:04 -0700, Satheesh Bandaram a écrit :

 


Right... Network server currently sends whole datatype over to client.
While this works for most datatypes, since they are limited in size,
it may be a problem for clob/blob types. Server needs to be able to
stream these large datatypes over the wire on demand, so no matter
whether we have a common client or not, server needs to be enhanced.

Satheesh

Daniel John Debrunner wrote:    

Michael J. Segel wrote:

      


On Wednesday 31 August 2005 10:49, Satheesh Bandaram wrote:

          


Thanks for the offer.. It would really be great to have more developpers
working on Derby. Join the derby-dev alias to participate in the
development.

Derby embedded driver already has the capability to stream blob/clob,
without requiring reading them completely into memory. It would be great to
enhance Derby network server and Derby client to support this kind of
behavior.

Satheesh

              


[SNIP]

This may be a dumb question...

Maybe its hindsight, but why isn't the Server Framework either a subclass or an extension to the embedded driver? Someone had posted that the Network Driver utilized the embedded driver... (Or is that bathtub gin affecting my memory?)

I guess it goes more to the point of why not have more focus on a "universal" driver?

          


My view


Really the two drivers are doing different things, one has to convert
requests into messages using DRDA over tcp/ip, the other just calls java
methods.

Dan.



      



 


<david.vancouvering.vcf>


Craig Russell

Architect, Sun Java Enterprise System http://java.sun.com/products/jdo

408 276-5638 mailto:[EMAIL PROTECTED]

P.S. A good JDO? O, Gasp!


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