Task

Table : GRADE REPORT relation

Using above table

1. Draw a dependency diagram to show the functional dependencies in the relation

2. Decompose the GRADE REPORT relation into a set of 3NF relations

3. Draw a relational schema for your 3NF relations and show the referential integrity constraints

NOTE

For guidance on how to normalise database relations from a dependency diagram, watch this very short YouTube video.

Manually drawing the dependency diagram, or the set of 3NF relations or the relational schema is NOT acceptable.

Rationale

This assessment aligns with the following subject outcomes:be able to critically analyse a database design and apply normalisation theory and techniques;