I’m riffing on database design and modeling in an agile methodology. In the previous post here I suggested that we might cheat a little and design database schemas 2-4 weeks in advance of their use… further, I suggested that to maximize agility we should limit the design to a conceptual schema. In this post I’m…
One of the side-effects of the little cheat posted here is that, if we are going to design early we have to decide what we will design early… and this question has two complications. First, we have to ask ourselves how detailed do we design before the result becomes un-agile? Next, we have to ask…
In this post I am going to suggest doing a little design a little upfront and violating the purity of agility in the process. I think that you will see the sense. To be fair, I do not think that what I am going to say in this post is particularly original… But in my…
Here is a quick review of tens years of data warehouse database competition… and a peek ahead… Maybe ten years ago Netezza shook up the DW DBMS market with a parallel database machine that could compete with Teradata. About six years ago Greenplum entered the market with a commodity-based product that was competitive… and then…
Last year two associates from Greenplum suggested that I read a very smart academic paper titled “Efficiently Compiling Efficient Query Plans for Modern Hardware” by Thomas Neumann. Having reiterated the idea of database supercomputing in my last blog (here)… I can now suggest this paper to you. In short this paper suggests that the classic…
This is the 3rd and final example of a vendor admitting, without admitting, to an architectural limitation. The first two parts on Exadata and Teradata are here and here. Teradata started to get real traction in the EDW space with a shared-nothing architecture in the late 1980’s. At that time the only real competition was…
I composed the video below on a contract for Intel… but they were kind enough to let me tell the story with only a lite promotional touch. I think that you will find the story interesting as it describes 20+ years of systems architecture and suggests where we may well be headed in the next…
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