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From Jeremy Boynes <>
Subject Re: Purpose of Derby & Default DB
Date Fri, 12 Nov 2004 06:20:50 GMT
The DefaultDB is older and predates Derby's arrival at the ASF. Services 
that needed a database backend were using it.

When Derby arrived and was integrated I added it as System DB so we 
could see how it would work out without disrupting any of the existing 

In our environment Derby has several advantages over Axion (such as XA) 
  so I think it makes a better choice for user apps. Given that and that 
we probably only want one embedded DB I think it makes sense to 
transition gradually to Derby.


Aaron Mulder wrote:
> 	Actually, that should be "Purpose of Derby & System DB".  I was 
> mixed up -- the "default DB" is the Axion one that's used, the "system DB" 
> is the Derby one that seems optional.  Sorry.
> Aaron
> On Thu, 11 Nov 2004, Aaron Mulder wrote:
>>	What's the use of loading the default Derby database?  Just for 
>>grins?  I mean, it looks like the system DB is used by the (EJB?) timer 
>>service...  but I don't see anything using the default DB.
>>	Aaron

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