Remove Aggregated Data Remove Non-relational Database Remove NoSQL
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20 Best Open Source Big Data Projects to Contribute on GitHub

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DataFrames are used by Spark SQL to accommodate structured and semi-structured data. You can also access data through non-relational databases such as Apache Cassandra, Apache HBase, Apache Hive, and others like the Hadoop Distributed File System.

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100+ Data Engineer Interview Questions and Answers for 2023

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Differentiate between relational and non-relational database management systems. Relational Database Management Systems (RDBMS) Non-relational Database Management Systems Relational Databases primarily work with structured data using SQL (Structured Query Language).