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Open Data

What is Open Data?

INTRODUCTION Open data is data that can be freely used, shared and built-on by anyone, anywhere, for any purpose. This is the summary of the full Open Definition which the Open Knowledge Foundation created in...

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SQL Engines for Hadoop: Hive vs Impala vs Spark

INTRODUCCION Hive, Impala and Spark SQL all fit into the SQL-on-Hadoop category. Apache Hive and Spark are both top level Apache projects. Impala is developed...

What is Big Data?