ATARMAxxing · WACE Computer Science revision notes
ER diagrams in crow's foot notation, relational notation, data dictionaries and resolving M:N
Data modelling
What this note covers
- Why developers document databases
- Crow's foot notation
- Worked example: an ER diagram described in text
- Resolving many-to-many relationships
- Relational notation
- Data dictionaries
- Exam technique for data modelling
7 sections · 10 key terms & formulas · 6 common mistakes
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