All parts of this question use the following database schema:Flights(flno, from, to, distance)Aircraft(aid, aname, cruisingrange)Certified(eid, aid)Employees(eid, ename, salary)In the above schema, Employees describes all employees, while Certified represents the fact thata given employee is certified to fly a given aircraft. Thus, all employees who are pilots will belisted in Certified (and no other employees will). An aircraft is able to fly a given flight if theaircraft's cruisingrange is at least as great as the flight's distance.a)Express in both (i) Relational Algebra and (ii) SQL:Find the cruisingrange of aircraft that George is certified to fly.

A procedural query language that accepts relation instances as input and returns relation instances…

Answered: All parts of this question use the…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Please create an ER Diagram for the sports case study. I have also uploaded a sample ER Diagram so please take a look at that as well.
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