Скачать или смотреть Chapter 7: Operational Databases

In this video, we dive into how operational databases form the foundation of Big Data environments. Chapter 7 explains how different database models handle large-scale data storage, retrieval, and real-time processing.

You’ll learn:
⦁ The role of relational databases (RDBMS) in Big Data systems.
⦁ The rise of nonrelational (NoSQL) databases and their advantages.
⦁ Key database types: key-value, document, columnar, graph, and spatial.
⦁ Examples like PostgreSQL, MongoDB, CouchDB, HBase, and Neo4j.
⦁ The concept of polyglot persistence — using multiple databases for different needs.

By the end of this chapter, you’ll understand how modern databases power fast, flexible, and scalable data operations in Big Data ecosystems.