pureXML

Analysis of IBM’s native XML database management option, DB2 pureXML. Related subjects include:

September 24, 2013

JSON in DB2

There’s a growing trend for DBMS to beef up their support for multiple data manipulation languages (DMLs) or APIs — and there’s a special boom in JSON support, MongoDB-compatible or otherwise. So I talked earlier tonight with IBM’s Bobbie Cochrane about how JSON is managed in DB2.

For starters, let’s note that there are at least four strategies IBM could have used.

IBM’s technology choices are of course influenced by its use case focus. It’s reasonable to divide MongoDB use cases into two large buckets:

IBM’s DB2 JSON features are targeted at the latter bucket. Also, I suspect that IBM is generally looking for a way to please users who enjoy working on and with their MongoDB skills.  Read more

October 5, 2008

Schema flexibility and XML data management

Conor O’Mahony, marketing manager for IBM’s DB2 pureXML, talks a lot about one of my favorite hobbyhorses — schema flexibility — as a reason to use an XML data model. In a number of industries he sees use cases based around ongoing change in the information being managed:

Conor also thinks market evidence shows that XML’s schema flexibility is important for data interchange. Read more

October 5, 2008

Vertical market XML standards

Tracking the alphabet soup of vertical market XML standards is hard. So as a starting point, I’m splitting a list I got from IBM into a standalone post.

Among the most important or successful IBM pureXML-supported standards, in terms of downloads and other evidence of customer interest, are: Read more

October 5, 2008

Overview of IBM DB2 pureXML

On August 29, I had a great call with IBM about DB2 pureXML (most of the IBM side of the talking was done by Conor O’Mahony and Qi Jin). I’m finally getting around to writing it up now. (The world of tabular data warehousing has kept me just a wee bit busy …)

As I write it, I see there are a considerable number of holes, but that’s the way it seems to go when researching XML storage. I’m also writing up a September call from which I finally figured out (I think) the essence of how MarkLogic Server works – but only after five months of trying. It turns out that MarkLogic works rather differently from DB2 pureXML. Not coincidentally, IBM and Mark Logic focus on rather different use cases for native XML storage.

What I understand so far about the basic DB2 pureXML architecture goes like this: Read more

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