Database Systems (COM1025)

University of Surrey (UNIS)

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Summary and Flashcards - Database Systems

Summary and Flashcards - Database Systems
Summary • 61 pages • 2024
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In-depth notes and flashcards going over databases. Models, difference between information and data, scheme architecture and modelling, relationship models. Document and key value databases (Redis, Amazon DynamoDB), graph databases, DMS and DSMS, multi-user access control, backup and integrity management. CRUD, business rules, SQL in detail, mappings and entities. Domains and attributes, operators in SQL and querying. Constraints in databases, EERMs, types of hierarchies, database normalisation,...