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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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• All questions should be written in one SQL query
1. List the number of female and male staff
2. List the staff name and salary who has the max
salary
3. List the unique city name that branch has female
staff
4. List the street name that has “9” in the zipcode
5. List the number of staff working at London
6. List staff average salary for each branch

Transcribed Image Text:**Staff Information Table** This table presents a detailed overview of staff members, including their identification numbers, personal details, job positions, and associated branches. Below is a structured breakdown of the data: | **Staff No.** | **First Name** | **Last Name** | **Position** | **Sex** | **Date of Birth** | **Salary** | **Branch No.** | |---------------|----------------|---------------|----------------|---------|------------------|------------|----------------| | SA9 | Mary | Howe | Assistant | F | 1970-02-19 | 9000.00 | B007 | | SG14 | David | Ford | Supervisor | M | 1958-03-24 | 18000.00 | B003 | | SG37 | Ann | Beech | Assistant | F | 1960-11-10 | 12000.00 | B003 | | SG5 | Susan | Brand | Manager | F | 1940-06-03 | 24000.00 | B003 | | SL21 | John | White | Manager | M | 1945-10-01 | 30000.00 | B005 | | SL41 | Julie | Lee | Assistant | F | 1965-06-13 | 9000.00 | B005 | **Description of Columns:** - **Staff No.:** Unique identifier for each staff member. - **First Name & Last Name:** The first and last names of the staff members. - **Position:** The role or job title held by the staff member within the organization. - **Sex:** Gender of the staff member, denoted as M for Male and F for Female. - **Date of Birth (DOB):** The birth date of each staff member. - **Salary:** The annual salary in monetary units. - **Branch No.:** The branch number to which each staff member is assigned. The table provides valuable insights into the hierarchical structure and the distribution of staffing along with their respective financial compensations and allocation to different branches.