POSTGRESQL DATABASE INTERVIEW QUESTIONS

What is a database function in PostgreSQL?

How do you create a simple function in PostgreSQL?

What are the benefits of using functions in PostgreSQL?

Can a PostgreSQL function return multiple values? If so, how?

What is the difference between a stored procedure and a function in PostgreSQL?

How can you handle errors within a PostgreSQL function?

Explain how you can create a function in PostgreSQL that returns a set of records.

What are window functions and how can they be used within PostgreSQL functions?

How can you optimize the performance of PostgreSQL functions?

Describe the security considerations when creating and using functions in PostgreSQL.