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                                          Exasol

                                          Analysis of data warehouse DBMS vendor Exasol. Related subjects include:

                                          August 28, 2016

                                          Are analytic RDBMS and data warehouse appliances obsolete?

                                          I used to spend most of my time — blogging and consulting alike — on data warehouse appliances and analytic DBMS. Now I’m barely involved with them. The most obvious reason is that there have been drastic changes in industry structure:

                                          Simply reciting all that, however, begs the question of whether one should still care about analytic RDBMS at all.

                                          My answer, in a nutshell, is:

                                          Analytic RDBMS — whether on premises in software, in the form of data warehouse appliances, or in the cloud — are still great for hard-core business intelligence, where “hard-core” can refer to ad-hoc query complexity, reporting/dashboard concurrency, or both. But they aren’t good for much else.

                                          Read more

                                          February 5, 2013

                                          Comments on Gartner’s 2012 Magic Quadrant for Data Warehouse Database Management Systems — evaluations

                                          To my taste, the most glaring mis-rankings in the 2012/2013 Gartner Magic Quadrant for Data Warehouse Database Management are that it is too positive on Kognitio and too negative on Infobright. Secondarily, it is too negative on HP Vertica, and too positive on ParAccel and Actian/VectorWise. So let’s consider those vendors first.

                                          Gartner seems confused about Kognitio’s products and history alike.

                                          Gartner is correct, however, to note that Kognitio doesn’t sell much stuff overall.

                                          * non-existent

                                          In the cases of HP Vertica, Infobright, ParAccel, and Actian/VectorWise, the 2012 Gartner Magic Quadrant for Data Warehouse Database Management’s facts are fairly accurate, but I dispute Gartner’s evaluation. When it comes to Vertica: Read more

                                          August 7, 2012

                                          Notes on some basic database terminology

                                          In a call Monday with a prominent company, I was told:

                                          That, to put it mildly, is not accurate. So I shall try, yet again, to set the record straight.

                                          In an industry where people often call a DBMS just a “database” — so that a database is something that manages a database! — one may wonder why I bother. Anyhow …

                                          1. The products commonly known as Oracle, Exadata, DB2, Sybase, SQL Server, Teradata, Sybase IQ, Netezza, Vertica, Greenplum, Aster, Infobright, SAND, ParAccel, Exasol, Kognitio et al. all either are or incorporate relational database management systems, aka RDBMS or relational DBMS.

                                          2. In principle, there can be difficulties in judging whether or not a DBMS is “relational”. In practice, those difficulties don’t arise — yet. Every significant DBMS still falls into one of two categories:

                                          *I expect the distinction to get more confusing soon, at which point I’ll adopt terms more precise than “relational things” and “relational stuff”.

                                          3. There are two chief kinds of relational DBMS: Read more

                                          April 7, 2012

                                          Many kinds of memory-centric data management

                                          I’m frequently asked to generalize in some way about in-memory or memory-centric data management. I can start:

                                          Getting more specific than that is hard, however, because:

                                          Consider, for example, some of the in-memory data management ideas kicking around. Read more

                                          February 8, 2012

                                          Comments on the analytic DBMS industry and Gartner’s Magic Quadrant for same

                                          This year’s Gartner Magic Quadrant for Data Warehouse Database Management Systems is out.* I shall now comment, just as I did on the 2010, 2009, 2008, 2007, and 2006 Gartner Data Warehouse Database Management System Magic Quadrants, to varying extents. To frame the discussion, let me start by saying:

                                          *As of February, 2012 — and surely for many months thereafter — Teradata is graciously paying for a link to the report.

                                          Specific company comments, roughly in line with Gartner’s rough single-dimensional rank ordering, include: Read more

                                          November 12, 2011

                                          Exasol update

                                          I last wrote about Exasol in 2008. After talking with the team Friday, I’m fixing that now. ?? The general theme was as you’d expect: Since last we talked, Exasol has added some new management, put some effort into sales and marketing, got some customers, kept enhancing the product and so on.

                                          Top-level points included:

                                          Read more

                                          February 4, 2009

                                          Draft slides on how to select an analytic DBMS

                                          I need to finalize an already-too-long slide deck on how to select an analytic DBMS by late Thursday night.? Anybody see something I’m overlooking, or just plain got wrong?

                                          Edit: The slides have now been finalized.

                                          September 5, 2008

                                          Dividing the data warehousing work among MPP nodes

                                          I talk with lots of vendors of MPP data warehouse DBMS. I’ve now heard enough different approaches to MPP architecture that I think it might be interesting to contrast some of the alternatives.

                                          Read more

                                          August 16, 2008

                                          Exasol technical briefing

                                          It took 5 ? months after my non-technical introduction, but I finally got a briefing from Exasol’s technical folks (specifically, the very helpful Mathias Golombek and Carsten Weidmann). Here are some highlights: Read more

                                          August 12, 2008

                                          Compare/constrast of Vertica, ParAccel, and Exasol

                                          I talked with Exasol today – at 5:00 am! — and of course want to blog about it. For clarity, I’d like to start by comparing/contrasting the fundamental data structures at Vertica, ParAccel, and Exasol. And it feels like that should be a separate post. So here goes.

                                          Beyond the above, I plan to discuss in a separate post how Exasol does MPP shared-nothing software-only columnar data warehouse database management differently than Vertica and ParAccel do shared-nothing software-only columnar data warehouse database management. ??

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