For this question, could you please help how to the following queries using Oracle SQL Database

11. A. Report the First name and last name of customers, however you should only report the first letter of the first name, leaving the last name as is. Example: Instead of: Bob and Squarepants" You should report B and Squarepants B. Report the full name of each customer, however you should only report the first letter of the first name accompanied by a dot and the entire last name. Example: Instead of: "Bob Squarepants" You should report "B. Squarepants