← 3.3 Relational Database Fundamentals
Key fields
Computer Studies · Grade 11 · about 40 minutes
Describe primary, foreign, composite and secondary keys.
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- 8 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
- Your progress kept across every subject you take
Other lessons in this sub-strand
- Database terms
- Database and DBMS components
- Types of database models
- The relational model
- Entities and attributes
- Data types
- Key fields
- Listing entities, attributes and keys
- Creating a database for a real task
- Representing a database in an ERD
- Creating relationships between entities
- Importance of relational databases
- Creating an operational database
- Reviewing relational databases