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use SQL to develop and execute the following queries: 1- Display the rank value and the average salary of employees per rank. 2- Display names and ids of employees from the "Human Resources" department. 3- Display the average salary of employees working in the "Marketing" department. Give an appropriate name to the output

use SQL to develop and execute the following queries: 1- Display the rank value and the average salary of employees per rank. 2- Display names and ids of employees from the "Human Resources" department. 3- Display the average salary of employees working in the "Marketing" department. Give an appropriate name to the output

Computer Networking: A Top-Down Approach (7th Edition)
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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use SQL to develop and execute the following queries: 1- Display the rank value and the average salary of employees per rank. 2- Display names and ids of employees from the "Human Resources" department. 3- Display the average salary of employees working in the "Marketing" department. Give an appropriate name to the output
Consider the following relations for a company: Department (Did: integer, Dname: string, location: string) Employee (Eid: integer, Ename: string, Erank: integer, salary: real, DepartmentlID, integer) Project (Pid: integer, DepartmentID: integer, Pname: string, budget: real, start year: integer) The "DepartmentID" fields in both Employee and Project are foreign keys referencing the "Did" field of the Department table.
Transcribed Image Text:Consider the following relations for a company: Department (Did: integer, Dname: string, location: string) Employee (Eid: integer, Ename: string, Erank: integer, salary: real, DepartmentlID, integer) Project (Pid: integer, DepartmentID: integer, Pname: string, budget: real, start year: integer) The "DepartmentID" fields in both Employee and Project are foreign keys referencing the "Did" field of the Department table.
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