RE: storing xml files into database
It's been about 18 months, and as of then that kind of bell or whistle wasn't listed on your website. Poet lost a lot of business through not having exactly those features, but we lost it to Oracle not Excelon. I admit I'm six months behind at B-Bop too, but if they'd anything like: >>> A typical, naive definition of a "nodes" table does lead to unacceptable performance due to the necessity of many self-joins. It is possible, however, to devise a scheme for encoding nodes' context in a compact form, optimized for an RDBMS' indexing facility, and build a generic table structure, capable of storing any well-formed XML, yet does not exhibit the self-join problem. <<< Visible on their website, an awful lot of us document geeks would have been all over them. Frank -----Original Message----- From: Chris Parkerson [mailto:chrisp@e...] Sent: Monday, September 10, 2001 2:20 PM To: 'Frank Richards'; 'Bill Lindsey'; xml-dev@l... Subject: RE: storing xml files into database Frank: How long has it been since you looked at XIS? We have X/A transaction support, online backup and restore, support failover and fault tolerant configurations, and replication if necessary (although rarely necessary in XIS's distributed caching model). We have all the features you'd expect from any other database, except for the ones that really aren't needed. But, then again, we're not competing against Oracle: we bring benefit on the XML side of things where Oracle fails (and we've proven it fails) and let our customers keep the enterprise systems that they trust to do what they trust them for. There have been several attempts at optimizing a relational model for dealing with XML. To date, I have not seen it work. Like I said earlier, I have not been able to get a hold of a copy of B-Bop to really try it and see if it works and if it can scale and perform to the levels we've seen with our own XIS. In theory, our approach should be more efficient and better, but I'd rather prove the theory if only given the opportunity. Cheers, Chris --------------------------------------- Chris Parkerson Product Manager eXcelon Corporation Burlington, MA (781) 674-5393 http://www.exceloncorp.com ---------------------------------------
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