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Big Data, MapReduce, Hadoop, NoSQL: The Relational Technology Behind the Curtain

Wayne Kernochan writes that Hadoop, MapReduce, and NoSQL are not like some IT trends of the past; when it comes to Big Data they matter today and have a major role to play going forward.

As it turns out, we are not back in those days, and Big Data via Hadoop and NoSQL does indeed have a part to play in scaling Web data. However, I find that IT buyer misunderstandings of these concepts may indeed lead to much wasted money, not to mention serious downtime. These misunderstandings stem from a common source: marketing’s failure to explain how Big Data relates to the relational databases that have fueled almost all data analysis and data-management scaling for the last 25 years.

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