What is a TOAST file?

To create a database that supports UTF-8, the following command can be used:

PostgreSQL allows you to implement table inheritance. This should be defined with the special keyword INHERITIS in the table design.

Which of the following is NOT a feature of user defined functions?

WAL segment size is determined:

The __________ database model has the advantage of being able to quickly discover all of the records of one type that are related to a specific record of another type by following the pointers from the starting record.

What does the following update statement do?

Update OrderTable set OrderDiscount=OrderDiscount*1.10

Which of the following is correct regarding VACUUM?

For which of the following languages does PostgreSQL provide an API interface?

The primary key indexing technique does not allow:

Which of the following functions is not available in PostgreSQL?