Question 2: SQL Please see the following tables. Solve the questions with nested queries and aggregation operators. Tables used in this note: Sailors(sid: integer, sname: string, rating: integer, age: real); Boats(bid: integer, bname: string, color: string); Reserves(sid: integer, bid: integer, day: date). 1. Find the average age of sailors for each rating level that has at least two sailors. 3. Find the names and age of sailors who have reserved only blue boats and present them in an ascending order of age.

Question 2: SQL Please see the following tables. Solve the questions with nested queries and aggregation operators. Tables used in this note: Sailors(sid: integer, sname: string, rating: integer, age: real); Boats(bid: integer, bname: string, color: string); Reserves(sid: integer, bid: integer, day: date). 1. Find the average age of sailors for each rating level that has at least two sailors. 3. Find the names and age of sailors who have reserved only blue boats and present them in an ascending order of age.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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