Consider the following primary key underlined project (PNO, PName, Duration Cost) Staff (SNO, SName) Assigned to (PNG, SNO) write The relational algebra for the following 1. Find the project Names of projects assigned to Ahmed. 2. find project mames of projects not assigned to any Staff. 3. find names of employee working on all projects. 4. Find numbers of Staff members who do not work on project number DB 2022 5. Find The Staff members who work on at least all of the projects that Staff 107 works on.

Consider the following primary key underlined project (PNO, PName, Duration Cost) Staff (SNO, SName) Assigned to (PNG, SNO) write The relational algebra for the following 1. Find the project Names of projects assigned to Ahmed. 2. find project mames of projects not assigned to any Staff. 3. find names of employee working on all projects. 4. Find numbers of Staff members who do not work on project number DB 2022 5. Find The Staff members who work on at least all of the projects that Staff 107 works on.

Np Ms Office 365/Excel 2016 I Ntermed

1st Edition

ISBN:9781337508841

Author:Carey

Publisher:Carey

Chapter6: Managing Multiple Worksheets And Workbooks

Section: Chapter Questions

Problem 22RA

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Considering the un-normalized relational table PROJECT below: PROJECT (Project Title, EmpeName, ManagerName, Location, Hours Work, ManagerPhone) The attributes of PROJECT table satisfy the following properties: Each project has many employees, Each employee may involve in one or more projects, Projects are managed by managers; there are many managers in the company, hence a project may be assigned to any one of the managers, but each manager manages only one project. Each project is located in a specific location, The number of hours an employee works at each project is determined by a project title and the name of an employee. Each manager has a telephone number. Normalize the relational table PROJECT into a minimal number of relational tables in BCNF. Use the functional dependencies to prove that each one of the relational tables obtained from the decomposition of the original table is in BCNF.
Consider the following primary key underlined project (PNO PName, Duration, Cost) Staff (SNO, SName) Assigned to (PNG, SNO) write The relational algebra for the following 1. Find the project Names of projects assigned to Ahmed. 2. find project mames of projects not assigned to any Staff 3. find names of employee working on all projects. 4. Find numbers of Staff members who do not work on project number DB 2022 least all of the projects that 5. Find The Staff members who work on at Staff 107 works on.
Question 14 Consider the following schema and answer the following questions: Project(projld: integer, proj_name: varchar) Employee(empld: integer, jobTitle: varchar, salary: number, projld: integer, deptld: integer) Department(deptld: integer, dept_name: varchar) a. Write the following queries in relational algebra. I. Find the jobTitle of employees who worked in project with id= "2654". ii. Find the IDs of employees who are earn salaries more than 1000. i. Find IDs of projects who accomplished by employee with id = "7452".
Question 14 Consider the following schema and answer the following questions: Project(projld: integer, proj_name: varchar) Employee(empld: integer, jobTitle: varchar, salary: number, projld: integer, deptld: integer) Department(deptld: integer, dept_name: varchar) a. Write the following queries in relational algebra. i. Find the jobTitle of employees who worked in project with id= "2654". ii. Find the IDs of employees who are earn salaries more than 1000. ii. Find IDs of projects who accomplished by employee with id = "7452". b. Write SQL queries for the following statements. i. Display all the employee's details in the decreasing order of their salary. ii. Count and display the number of employees worked in each project. i. Add the given new department's data into the Department table. deptld Dept_name 123 Human Resources
4. In a company, employees involved in many projects, and each project may have many employees working on it. The number of hours each employee works in each project, and the start date on which the employee starts working on the project are capture in the following relational table. EmployeeProject (EmpeNum, ProjNum, HoursWork, DateStartWorkOnProj)
If an employee can work for only one department and a department can have many employees (one to many relationship). Which answer the relationship table "work" that has the best values to describe the relationship between employee and department? The employee table has two columns (eid, name) with records ('E1','A'), ('E2','B'), ('E3','C'). The department table has two columns (did, name) with records ('D1','X'), ('D2','Y'), ('D3', 'Z'). work(eid, did) with values ('E1','D1'), ('E1','D2'), ('E2,'D2'). work(eid, did) with values ('E1','D1'), ('E2','D2'), ('E3,'D2'). work(eid, did) with values ('E1','D1'), ('E2','D2'), ('E2,'D3'). work(eid, did) with values ('E1','D1'), ('E2','D2'), ('E3,'D3').
Modify the CHARTER table to add the attributes shown in the following table. TABLE P8.37 ATTRIBUTES AND VALUES FOR PROBLEM 37 ATTRIBUTE NAME ATTRIBUTE DESCRIPTION ATTRIBUTE TYPE CHAR_WAIT_CHG Waiting charge for each model (copied from the MODEL table) Numeric CHAR_FLT_CHG_HR Flight charge per mile for each model (copied from the MODEL table using the MOD_CHG_MILE attribute) Numeric CHAR_FLT_CHG Flight charge (calculated by CHAR_HOURS_FLOWN CHAR_FLT_CHG_HR) Numeric CHAR_TAX_CHG CHAR_FLT_CHG tax rate (8%) Numeric CHAR_TOT_CHG CHAR_FLT_CHG + CHAR_TAX_CHG Numeric CHAR_PYMT Amount paid by customer Numeric CHAR_BALANCE Balance remaining after payment Numeric
Indicate dependences and their type.
StayWell also rents out properties on a weekly basis to students attending summer school in the Seattle area. Design a database to meet the following requirements, using the shorthand representation and a diagram of your choice. For each student renter, list his or her number, first name, middle initial, last name, address, city, state, postal code, telephone number, and e-mail address. For each property, list the office number, property address, city, state, postal code, square footage, number of bedrooms, number of floors, maximum number of persons that can sleep in the unit, and the base weekly rate. For each rental agreement, list the renter number, first name, middle initial, last name, address, city, state, postal code, telephone number, start date of the rental, end date of the rental, and the weekly rental amount. The rental period is one or more weeks.
Assume that you are hired to design a relational database to "manage" the thesis and the projects done in an academic department. Write a maximum 5 pages executive summary which will serve as the requirements analyses document. Your exec summary should provide the following information. No SQL implementation is required at this stage. Stake holders (not just the bare end users) End users Expected functionalities (i.e., sample queries in English, not in SQL) Relation/Tables with the attributes Primary key(s) for each table.
Write the SQL statements to create all of the necessary tables to represent the above diagram, representing as many constraints as possible. Note: you do not need to worry about specifying types for the fields, but you do need to provide suitable foreign key option(s). When playing a game, the home team name should be stored in attribute htname and the away team name should be stored in atname.
Design a survey form of your own. Fill it out as it might have been completed during the database design for Henry Books. For any questions you have too little information to answer, make a reasonable guess. (Ray Henry, the owner of a bookstore chain named Henry Books, gathers and organizes information about branches, publishers, authors, and books. Each local branch of the bookstore has a number that uniquely identifies the branch. In addition, Ray tracks the branch’s name, location, and number of employees. Each publisher has a code that uniquely identifies the publisher. In addition, Ray tracks the publisher’s name and city. The only user of the Book database is Ray, but you do not want to treat the entire project as a single user view. Ray has provided you with all the reports the system must produce, and you will treat each report as a user view. Ray has given you the following requirements: User View 1 Requirements: For each publisher, list the publisher code, publisher name, and…

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