Teams often need to centralize repeated database logic such as validations, updates, and batch operations. Stored procedures are one way to keep that logic close to the data.
Explain what stored procedures are in PostgreSQL and when you would use them. In your answer, cover:
Keep the answer practical and interview-focused. The interviewer expects a clear definition, a few realistic examples, and a balanced discussion of when stored procedures improve maintainability, security, or performance versus when they add complexity.