Create SQL queries to calculate the average ranking (AVG), the total of the rankings (SUM), and the number of rankings (COUNT)

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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Create SQL queries to calculate the average ranking (AVG), the total of the rankings (SUM), and the number of rankings (COUNT)
Sailor Profession
Sailors work in several professions and ranks, each with its own set of tasks that are critical to the effective
operation of an ocean-going vessel. The crew of a ship is organized into four major departments: the
deck department, the engineering department, the steward's department, and others. Jackson is 45 years
old and the engineering manager with rank 8. Donald is 58 years old and the steward manager with rank
7. Others include John, 36 years old and Mark, 24 years with ranks 6 and NULL respectively. This
information was extracted from a database tabo Obr.
Transcribed Image Text:Sailor Profession Sailors work in several professions and ranks, each with its own set of tasks that are critical to the effective operation of an ocean-going vessel. The crew of a ship is organized into four major departments: the deck department, the engineering department, the steward's department, and others. Jackson is 45 years old and the engineering manager with rank 8. Donald is 58 years old and the steward manager with rank 7. Others include John, 36 years old and Mark, 24 years with ranks 6 and NULL respectively. This information was extracted from a database tabo Obr.
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