Design a database schema matching requirements.
Customize for your project
Design a {{dbType}} database schema for {{projectName}} project:
1. Define entities and relationships (1:1, 1:N, N:M)
2. Columns, types, constraints per table
3. Index strategy
4. Normalization level (3NF-based)
5. Express ERD as text
Include SQL DDL.Fill in all fields to copy the completed prompt