Using the instance of the Airport database, formulate the following queries in the relational algebra: 1)Display the number of all carriers and the average of their revenues. 2)Display the minimum, the average, and the maximum distances of the flights that are scheduled on October 17th, 2017? 3)Display, for each carrierID, the number of flights and the average of their distances. Example: List all airport names. π name Airport Uploaded more examples on how to do it below:
Using the instance of the Airport database, formulate the following queries in the relational algebra: 1)Display the number of all carriers and the average of their revenues. 2)Display the minimum, the average, and the maximum distances of the flights that are scheduled on October 17th, 2017? 3)Display, for each carrierID, the number of flights and the average of their distances. Example: List all airport names. π name Airport Uploaded more examples on how to do it below:
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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Using the instance of the Airport
algebra:
1)Display the number of all carriers and the average of their revenues.
2)Display the minimum, the average, and the maximum distances of the flights that are
scheduled on October 17th, 2017?
3)Display, for each carrierID, the number of flights and the average of their distances.
Example: List all airport names.
π name Airport
Uploaded more examples on how to do it below:
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