Data Blogs | Information From Enterprise Leaders

Do You Know Where Your Data Is Tonight?

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by Ian Rowlands A while ago I set up a Google alert to track data breaches. Thanks Google – it saves me a lot of trawling. When I started I was getting one, or at most two, hits a day. Now I’m getting three or four every day. Over just the past few days my…

Big Data Is Not the Death Knell of ETL

OFFICIAL IBM PHOTO FOR JAMES KOBIELUS

by James Kobielus Data is useless if it lacks structure or if there is no opportunity to add structure downstream so that it can be processed, analyzed, and delivered into real-world applications. Structure is the contextual matrix within which data’s value is realized. It refers to the formats, schemas, models, tags, ontologies, patterns, and other…

To SQL, or to NoSQL …: That is STILL the Database Question

Evaldo Photo

by Evaldo Horn de Oliveira All right, Hamlet database aficionados — we get it. You’re having a hard time deciding what path to take your company down in terms of choosing the right database infrastructure. You spend endless days and nights ruthlessly seeking the answer, and although it may not be as drama-filled a decision…

Please Index Foreign Keys!

Michael Blaha

by Michael Blaha In the database literature, the lore has been to first design a schema and then predict the query mix to decide on a tuning strategy. This approach can work, but it is risky and error prone. A small misjudgment of the query mix can lead to vastly inferior performance. For many applications…

Who is Collecting and Marketing Your Personal Data?

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by Cathy Nolan The Wall Street Journal conducted a study that found that the nation’s 50 top websites installed, on average, 64 pieces of tracking technology onto the computers of visitors, usually with no warning. A dozen sites each installed more than a hundred. Tracking isn’t new, but the technology is growing so powerful and…

Are You Making this Costly Database Mistake?

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by Thomas LaRock Imagine the beginning of a typical office worker’s day: After getting a cup of coffee and logging in on their computer, they’ll most likely open up whatever applications they use throughout the work day—email, chat, internal CRM systems and maybe the company intranet. This time, however, one or more of the applications…

Enterprise Data World: What’s Your Data Story?

Enterprise Data World

I’m confident that just about everyone who works in data management today has a story to tell. The field has been so active in recent years, and the application areas so innovative and diverse, that every data management practitioner has acquired unique and interesting experiences. My request to all of you is to consider sharing…

October 2014 DATAVERSITY Letter from the Editor

Letter from the Editor

If you’re in the northern hemisphere, happy fall! If in the southern, happy spring! Either way, the climate is changing, but things remain hopping here at DATAVERSITY. Two big things to bring to your immediate attention: Data Governance Winter 2014 Conference: we have launched the agenda and opened registration for this event happening December 8-12,…

Myth 2 – Meaningless Normalization

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by Karen Lopez Does this happen to you: someone gives you a table structure and asks you to say what normal form it’s in?  You look at it, see something that looks like repeating groups and some columns that look like they aren’t supposed to be mixed up with all those other columns (lets say…