GIS and geospatial

Analysis of data management technology optimized for geospatial data, whether by specialized indexing or user-defined functions

August 2, 2009

Teradata 13 focuses on advanced analytic performance

Last October I wrote about the Teradata 13 release of Teradata’s database management software. Teradata 13, which will be used across the various Teradata product lines, has now been announced for GCA (General Customer Availability)*. So far as I can tell, there were two main points of emphasis for Teradata 13:

To put it even more concisely, the focus of Teradata 13 is on advanced analytic performance, although there of course are some enhancements in simple query performance and in analytic functionality as well. Read more

May 26, 2009

Teradata Developer Exchange (DevX) begins to emerge

Every vendor needs developer-facing web resources, and Teradata turns out to have been working on a new umbrella site for its.  It’s called Teradata Developer Exchange — DevX for short.  Teradata DevX seems to be in a low-volume beta now, with a press release/bigger roll-out coming next week or so.  Major elements are about what one would expect:

If you’re a Teradata user, you absolutely should check out Teradata DevX.  If you just research Teradata — my situation 🙂 — there are some aspects that might be of interest anyway.  In particular, I found Teradata’s downloads instructive, most particularly those in the area of extensibility.  Mainly, these are UDFs (User-Defined Functions), in areas such as:

Also of potential interest is a custom-portlet framework for Teradata’s management tool Viewpoint.  A straightforward use would be to plunk some Viewpoint data into a more general system management dashboard.  A yet cooler use — and I couldn’t get a clear sense of whether anybody’s ever done this yet — would be to offer end users some insight as to how long their queries are apt to run.

April 24, 2009

IBM’s Oracle emulation strategy reconsidered

I’ve now had a chance to talk with IBM about its recently-announced Oracle emulation strategy for DB2. (This is for DB2 9.7, which I gather has been quasi-announced in April, will be re-announced in May, and will be re-re-announced as being in general availability in June.)

Key points include:

Because of Oracle’s market share, many ISVs focus on Oracle as the underlying database management system for their applications, whether or not they actually resell it along with their own software. IBM proposed three reasons why such ISVs might want to support DB2: Read more

January 28, 2009

More Oracle notes

When I went to Oracle in October, the main purpose of the visit was to discuss Exadata. And so my initial post based on the visit was focused accordingly. But there were a number of other interesting points I’ve never gotten around to writing up. Let me now remedy that, at least in part. Read more

October 14, 2008

Teradata Geospatial, and datatype extensibility in general

As part of it’s 13.0 release this week, Teradata is productizing its geospatial datatype, which previously was just a downloadable library. (Edit:  More precisely, Teradata announced 13.0, which will actually be shipped some time in 2009.) What Teradata Geospatial now amounts to is:

Teradata also intends in the future to implement actual geospatial indexing; candidates include r-trees and tesselation.

Hearing this was a good wake-up call for me, because in the past I’ve conflated two issues on datatype extensibility, namely:

But as Teradata just pointed out, those two issues can indeed be separated from each other.

September 26, 2008

Netezza and Teradata on analytic geospatial data management

Geospatial data management is one of the flavors of the month:

So I asked Netezza and Teradata what this geospatial analytics stuff is all about. Read more

September 23, 2008

Oracle spotlights its datatype support

Oracle put out a flurry of press releases today in conjunction with Oracle OpenWorld. One, which was simply positioned as a report on some “mission-critical” customer apps, caught my eye because all four detailed examples involved nonstandard datatypes:

September 23, 2008

Peter Batty on Netezza Spatial

As previously noted, I’m not up to speed on Netezza Spatial. Phil Francisco of Netezza has promised we’ll fix that ASAP. In the mean time, I found a blog by a guy named Peter Batty, who evidently:

Batty offers a lot of detail in two recent posts, intermixed with some gollygeewhiz about Netezza in general. If you’re interested in this stuff, Batty’s blog is well worth checking out. Read more

September 15, 2008

Teradata decides to compete head-on as a data warehouse appliance vendor

In a press release today that is surely timed to impinge on the Netezza user conference news cycle, Teradata has come out swinging. Highlights include:

Read more

May 13, 2008

McObject eXtremeDB — a solidDB alternative

McObject — vendor of memory-centric DBMS eXtremeDB — is a tiny, tiny company, without a development team of the size one would think needed to turn out one or more highly-reliable DBMS. So I haven’t spent a lot of time thinking about whether it’s a serious alternative to solidDB for embedded DBMS, e.g. in telecom equipment. However:

And they do seem to have some nice features, including Patricia tries (like solidDB), R-trees (for geospatial), and some kind of hybrid disk-centric/memory-centric operation.

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