Have you had experience in designing a database independently?

Yes, experience in designing databases independently includes:

• Requirements analysis and data modeling (ER diagrams, normalization).
• Choosing the type of database (relational, NoSQL) depending on the task.
• Designing tables, relationships, indexes, and constraints.
• Optimizing structure for performance and scalability.
• Implementing migrations and schema versioning.

For example, when developing a content management system, I designed the table structure for users, roles, articles, and comments, considering relationships and integrity constraints.