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A3.2 Database design

Subtopic A3.2 covers database design: schemas (conceptual, logical, physical), ERDs, data types, table creation (keys), normalisation (1NF-3NF with related concepts), and denormalisation. A3.2.1 Describe database schemas.Every database relies on a schema, a structure defining data organization and relationships. We'll explore conceptual, logical, and physical schemas, and how they abstractly... A 3.2.2 Entity...

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