Data Modeling in SQL | Dataford Interview Questions

Tell me about the data model you used and how you queried and manipulated the data in SQL.

Keep your answer focused on the tables, relationships, and the main query patterns you used. Include how you handled joins, filters, and aggregations when answering business questions.

Output

Provide a concise explanation of the data model and the SQL patterns used.
Mention the main tables involved, the grain of the data, and how related records were combined.
Describe how you filtered, aggregated, and validated the results.

Schema

data_model_notes

Column	Type	Description
note_idPK	INT	Primary key
topic	VARCHAR(100)	Interview topic
details	TEXT	Short explanation

Your question is Data Modeling in SQL. Start with the requirements and the one table in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem