Am 28.07.2011 08:30, Tom Cloyd wrote:
As an aside, have you thoughts to share about HSQLDB vs H2? Any good reason to migrate to H2 (a question entirely separate from the db speed question). I'd be interested to hear your thoughts if you have time to share them.
The tiny user community of the Base component gathers on http://user.services.openoffice.org/en/forum/index.php and http://www.oooforum.org/forum/viewforum.phtml?f=10.
Have a walk through http://user.services.openoffice.org/en/forum/viewforum.php?f=83 and http://user.services.openoffice.org/en/forum/viewforum.php?f=100.
Read contributions by most valued member "DACM". He knows "everything" about embedded HSQLDB, why not to use it, how to transform it to something useful. http://www.oooforum.org/forum/viewtopic.phtml?t=94068 [How to: Migrate Base Projects to Multi-User] http://www.oooforum.org/forum/viewtopic.phtml?t=97522 [Replace HSQLDB with H2 embedded multi-user] http://user.services.openoffice.org/en/forum/viewtopic.php?f=83&t=17567&p=162653#p162653 [[Tutorial] Avoid data loss by avoiding "Embedded databases"]
Both database engines are just great, even for people who do not intend to write their own Java application around these animals. For my last tiny project I prefered HSQLDB v2 simply because I already had working drafts in embedded HSQLDB v1.8.
I tried H2 when HSQLDB v2 was not released and I had to do some analysis work on half a million interrelated records from 2 databases. The single-user local DB simply worked out of the box, just like HSQLDB 1.8 did with less features. I copied dBase and csv data into the prepared database structure, added queries, some macros and dumped the final aggregations in Calc's pivot tables.
Replacing one excellent database backend with another excellent database backend makes no sense. The "database in a single zip archive" (the so called "Base document") is the major trouble maker which makes up a slow, inflexible, unsafe, insecure caricature of a database while the advantage is close to zero.
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