Stage 5: Derive the logical data model
Knobit of Data modelling · K-555 · Knowledge
Explains second normal form
What it means
No non-prime attribute depends on part of a candidate key.
How it is assessed
Classifies sample entities with composite keys as in or not in 2NF and names the partial dependency
Builds on
- Explains candidate key and prime attributeK-552 · Knowledge
Needed by
- Recognises a partial dependency on a composite keyK-508 · Skill