A meta-command always begins with what?

To create a database in PostgreSQL, you must have the special CREATEDB privilege or

What does the following statement do? CREATE INDEX lower_title_idx ON books ((lower(title)));

What command allows you to edit PostgreSQL queries in your favorite editor ?

To prevent transaction wraparound, a VACUUM operation should be run on every table no less than once every:

Asynchronous Commits:

Food Cart Accounting System (FOCAS) is maintaining products in the products table, and wants to see the products which are 50 or more numbers far from the minimum stock limit. The structure of the Products table is:

        ProductID

        ProductName

        CurrentStock

        MinimumStock

Two possible queries are:

Statement 1: select * from products where currentStock>MinimumStock+50

Statement 2: select * from products where currentStock-50>MinimumStock

Select an option which is more suitable for these queries:

Which of the following are supported by PostgreSQL?

What is the first step for manually installing PL/pgSQL in PostgreSQL?

A handler named 'plpgsqlHandle()' is created for installing PL/pgSQL. For creating the handler on 'SwineDB' database you would issue a command:

Premium Corp. uses alphanumeric characters for EmployeeID which contains 7 digits prefixed with 3 characters. The 3 characters describe the department code. You need to show the department code and the Employee number separately, where department code should be in capital letters. Which function(s) will you have to use for this?