What do database migrations do and why are they useful?

Database migrations are useful for a structured and controlled database management. The ups are rollback capabilities, version controll, and consistency. Overall migrations makes database operations safer and controlled keeping database changes in best practices.

How does GraphQL differ from REST for CRUD operations?

Graphql uses only one endpoint while REST uses multiple endpoints.

Graphql only fetches only requested fields while REST fetches all data.

Graphql uses queries and mutations while REST uses GET, POST, PUT, and DELETE for CRUD operations.