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Thursday, 21 February 2013
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Big Data: 3 Questions to Ask When Comparing Relational to NoSQL Databases

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Dave Beulke1:

  1. What feature justify using NoSQL over relational database?
    Hopefully, the answer is not buzz words or acronyms and is something truly in the NoSQL databases;

  2. What type of Big Data transaction consistency is required?
    Ask if the big data analysis in the NoSQL database needs to be repeatable and reliable.

  3. Do you realize that a Big Data application using an open source NoSQL database is going to cost more than a relational database?

I think the first question is great, the second could be a great question if such databases supporting repeatable and re-creatable results2 would actually exist, but the third one convinced me someone has something to sell.

  1. Dave Beulke is an internationally recognized DB2 consultant, DB2 trainer and education instructor. ↩

  2. Dave Beulke refers to ACID guarantees, but those are not actually providing repeatable and re-creatable results in the true sense. I think Datomic model is the closest to offering this behavior. ↩

Original title and link: Big Data: 3 Questions to Ask When Comparing Relational to NoSQL Databases (NoSQL database©myNoSQL)

via: http://davebeulke.com/big-data-3-questions-to-ask-when-comparing-relational-to-nosql-databases/