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Fundamentals of Relational Databases and SQL

A database is an organized collection of data stored in secondary memory. Database applications facilitate information retrieval, while the client/server model partitions tasks between servers and clients. A Database Management System (DBMS) efficiently stores and manages data, with popular examples being Microsoft SQL Server and Oracle. Relational databases organize data as tables, utilizing primary and foreign keys for data integrity. Entity-Relationship Diagrams depict table relationships, including one-to-many, one-to-one, and many-to-many relationships. SQL (Structured Query Language) is the standard for querying and manipulating data.

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Fundamentals of Relational Databases and SQL

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