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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 Systems: Design, Implementation, & Management
Database Systems: Design, Implementation, & Management
11th Edition
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Chapter7: Introduction To Structured Query Language (sql)
Section: Chapter Questions
Problem 21P: Write the SQL code to calculate the ASSIGN_CHARGE values in the ASSIGNMENT table in the...
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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 1least 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.
Transcribed Image Text: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 1least 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.
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