For each one of the domain specification given below, identify all the functional dependencies, and its highest normal form. Remember that the identification of a normal form requires analysis of the valid functional dependencies and the minimal keys. Providejustification of each answer. 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) 5. Each student is assigned with a counselor who will act as an advisor to the students. The student is given the counselor email address so that the student can contact the counselor for advice. The information on the student and counselor are stored in the following relational table. STUDENTCOUNSELOR (StdNum, StdName, CounselorName, CounselorEmail)

For each one of the domain specification given below, identify all the functional dependencies, and its highest normal form. Remember that the identification of a normal form requires analysis of the valid functional dependencies and the minimal keys. Providejustification of each answer. 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) 5. Each student is assigned with a counselor who will act as an advisor to the students. The student is given the counselor email address so that the student can contact the counselor for advice. The information on the student and counselor are stored in the following relational table. STUDENTCOUNSELOR (StdNum, StdName, CounselorName, CounselorEmail)

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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Suppose that you are given the following information for the articles publications: • Each article is published in a Journal only. Article may have their own identification number, name, and any other relevant information. Articles cannot be duplicated and will be only accepted in a Journal. Journal will have their identification number, name, any other relevant information. • Authors may publish one or more articles at a time, but each article must be distinctive and published in the appropriate journal. If necessary, the author may be required to present their work at a specific conference. The details of the conference must also be recorded. A reviewer will examine an article before it is published. Each reviewer is only allowed to review two articles from the same journal. Sketch an Enhanced Entity Relationship Diagram (Chen's Model) based on the scenario above. Include all the relevant entities and you are also encouraged to add any other relevant entities to specify the…
110. The normal form which consider all the types of constraints and dependencies is classified as a. domain-key normal form b. foreign-key normal form c. candidate-key normal form d. primary-key normal form
Regional Labs is a company that conducts research and development work on a contract basis for other companies and organizations. Figure 2-31 shows data that Regional Labs collects about projects and the employees assigned to them. This data is stored in a relation (table) named PROJECT: PROJECT (ProjectID, EmployeeName, EmployeeSalary) Assuming that all functional dependencies are apparent in this data, which of the following are true? ProjectID → EmployeeName ProjectID → EmployeeSalary (ProjectID, EmployeeName) → EmployeeSalary EmployeeName → EmployeeSalary EmployeeSalary → ProjectID EmployeeSalary → (ProjectID, EmployeeName
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All entity names, relationship names, and attribute definitions must be correct.
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What kind of Entity instance would it be? REGISTRATION, COURSE, AND STUDENT A. Ali, Mohammed, and Khalid; B. Stud ID and Stud Name; C. STUDENT, COURSE, AND REGISTRATION Ali, Mohammed, Khalid; Stud ID; Stud Name; Student; Course d. Offers, records, and consists of
For the table BOOKAUTHOR below you are given the following functional dependencies. BOOKAUTHOR (ISBN, BookTitle, Author_Num, LastName, Publisher, Royalty, Edition) Functional dependencies: 1. ISBN BookTitle, Publisher, Edition 2. Author Num → LastName 3. BookTitle → Publisher 4. {ISBN, Author_Num} → BookTitle, LastName, Publisher, Royalty, Edition Write the types of functional dependencies shown in (1) to (4) above. Also, decompose the table to the third normal from (3NF).
Describe the concept of functional dependency and how it relates to normalization.
Part 1: Use the following schema to answer the questions 1-3 below. This schema refers to a gaming organization. There can be any number of players per game. Each game and each tournament has one winner; if the game or tournament is ongoing, the winner is null. The gameWinner and tournamentWinner attributes are foreign keys for memberID. Member (memberlD, memberName, joinDate) Game (gamelD, gameType, gameDate, gameWinner, tournamentName) MemberGame (memberlD, gamelD) Tournament (tournamentName, tournamentWinner) 1. Write mySQL queries to generate the following tables: a. The total number of ongoing tournaments. b. The average number of players per game of type Power Grid. c. The names (no duplicates) of all players Abigail Baker beat in any game.
How does the primary key of a relation relate to the interdependencies of its characteristics from a functional standpoint?
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