Getting about Block 4.
Block 4 - Part 1
Introduction to developing database systems.
Block 4 - Part 2
Understanding Entity - Relationship Modelling.
Block 4 - Part 3
Attributes in Entity - Relationship Modelling.
Block 4 - Part 4
Further Entity - Relationship Modelling with Entity subtypes and constraints.
Block 4 - Part 5
Block 4 - Part 6
Improving the quality of a data model by Normalisation.
