A few months ago I followed an introductory course about the data vault modeling technique for data warehouses at a local training provider. As part of the training, I received the book Modeling the Agile Data Warehouse with Data Vault written by Hans Hultgren who also is an instructor for the official data vault certification. […]
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Browsing "Data Modelling and Design"
I ran into a tool named Gource while searching for ways to visualize activity from my git repositories. Besides creating awesome visualizations from my code, it also has the capability to take custom logs for visualizations. Which led me to think, what if I fed in blog posts from LessThanDot, using the primary categories in […]
I finished my first book of this year and here’s the review! After I finished the newest edition of Ralph Kimball’s Data Warehouse Toolkit, a senior colleague of mine recommended the book Star Schema The Complete Reference by Christopher Adamson. To be honest, I had never heard about it. But was I wrong: this book […]
How important is database documentation to you? I know you have a hundred “more important” things to do. But consider this: how much time is it going to take you to document the purpose of a constraint right now? How much time will you spend trying to r…
Eric Ligman has posted a nice collection of ebooks available in pdf, epub and mobi formats. The books cover Office, Office 365, SharePoint, SQL Server, System Center, Visual Studio, Web Development, Windows, Windows Azure, and Windows Server
What is Microsoft Business Intelligence? I’m not asked this question very often because it’s typically an assumption. As we know, assumptions can lead to misguidance or misrepresentation of a topic. This topic has been defined in so many different way…
Remember this article, “Comparing the Chicago Highway System to your Disaster/Recovery”?
Well, today, as with most days that I drive to the office or a client, the drive was lengthy and I started to compare the complete system of driving to a topic. …
Database design is the foundation on which we can build a successful initiative for maintenance and scalability. Administrators have the ability to maintain indexing, statistics, integrity checks and so on, but if a database is designed extremely poorl…
We got a question today from a user who wanted to display counts of zero where dates were missing. For example if you had the following data
This is day sixteen of the SQL Advent 2012 series of blog posts. Today we are going to look at the lack of database design and normalization.
Normalize untill it hurts, denormalize until it works