An overview of 12 open source and commercial SQL-on-Hadoop tools: Apache Hive, Apache Sqoop, Apache Phoenix, Impala, Presto, BigSQL, CitusDB, Hadapt, Jethro, Lingual, and HAWQ.
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All things data
Relational databases are here to stay - they are common, integrate with other information systems, do a good job of querying structured data, and people know how to use them. Some believe that adding Apache Hadoop to the organization means death to the good old RDBMS, but that is far from true.
Consider for a moment, if you will, plastic patio furniture. Plastic Fantastic is a global manufacturer with several factories, warehouses, and plenty of stores. One can only imagine the sheer amount of data resulting from sales, production, suppliers, and finances. Everything that happens, from purchase and onward, to these chairs, tables, and cupboards in all corners of the world is measured.