A3 · Higher Level
Databases & SQL
Model related data and query it accurately.
Learning goals
- Design related tables with suitable keys.
- Write and test SQL queries.
- Explain data integrity and the need for a well-structured schema.
In practice
- Model an equipment-loan database.
- Query realistic records in SQLite.
- Test queries against missing, duplicate and boundary data.
Show understanding
A schema, a set of tested queries and design justification.
Predict first. Implement second. Test deliberately. Explain what the evidence shows.