From: "Carl Rosenberger" Newsgroups: comp.databases.theory Subject: [ANN] Fast Java object database free for non-commercial Date: Tue, 12 Dec 2000 19:35:22 +0100 Organization: db4o.com Lines: 49 Message-ID: <915r4f$8ls$04$1@news.t-online.com> Reply-To: "Carl Rosenberger" Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Trace: news.t-online.com 976646095 04 8892 bCBD4vTSkHJHt 001212 18:34:55 X-Complaints-To: abuse@t-online.com X-Sender: 08936100717-0001@t-dialin.net X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Hi all, db4o is proud to announce the first full-featured beta version of "db4o - database for objects". If you look at the JDBC overhead for storing data, it is obvious, that improvements are possible: objects => strings => JDBC => transport layer => SQL parser => database engine memory => tables We reduce to the necessary: objects => byte arrays => storage medium A benchmark for a comparison of db4o flat data performance against JDBC is included with the download. Complex object structures are even more in our favour. How do you store ancestors in tables? Why do strings need a fixed length? Further strengths of db4o: - 50k jar file, ideal for web redistribution and low-resource environments - compact database file - automatic object recognition - query-by-example interface - navigation by activating members Learning db4o is very simple. Take an hour to work through the 20 samples. Try us, any feedback would be greatly appreciated. Regards, Carl --- Carl Rosenberger db4o - database for objects - http://www.db4o.com