Spark SQL is a famous data processing tool among Big data professionals. Structured and semi-structured data can be easily processed on Spark SQL. Here structured data is that data which has a proper schema like Hive, JSON, Cables or Parquet data which has a pre-defined set of fields, records and other data, while semi-structured data may not necessarily have a schema. Today Hadoop is extensively used by industries to analyze data and Hadoop uses MapReduce technique to provide scalable, flexible and cost-effective computing models without compromising the speed of data processing. Apache
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