Consider the following relation for student records: GRADEREPORT(Student|D, StudentName, StudentMajor, StudentStreetAddress, CourselD, CourseTitle, CourseCreditPoints, CourseSemesterYear, CourselnstructorlID, InstructorID, InstructorName, InstructorOffice, Grade) Given that the following dependencies exist: StudentID -> StudentName, StudentMajor, StudentStreetAddress CourselD->CourseTitle, CourseCreditPoints, CourselnstructorID StudentResult -> CourselD, CourseSemesterYear, Grade Instructor -> InstructorID, InstructorName, InstructorOffice A1. Why is the relation in 1NF? State the reason briefly.

Consider the following relation for student records: GRADEREPORT(Student|D, StudentName, StudentMajor, StudentStreetAddress, CourselD, CourseTitle, CourseCreditPoints, CourseSemesterYear, CourselnstructorlID, InstructorID, InstructorName, InstructorOffice, Grade) Given that the following dependencies exist: StudentID -> StudentName, StudentMajor, StudentStreetAddress CourselD->CourseTitle, CourseCreditPoints, CourselnstructorID StudentResult -> CourselD, CourseSemesterYear, Grade Instructor -> InstructorID, InstructorName, InstructorOffice A1. Why is the relation in 1NF? State the reason briefly.

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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Consider the following relations: Employee(E_id: integer, E_name: string, Age: integer, Salary: real) Works(E_id: integer, Dep_id: integer, Start_date: date) Department(Dep_id: integer, Dep_name: string, Budget: real, Manager_E_id: integer) What referential integrity constraints exist between these relations? What are the options for enforcing these constraints when a user attempts to delete a Dept tuple?
Assume a user creates a new relation r1 with a foreign key that links to another relation r2. What degree of r2 access does the user need? Why can't something be done without prior authorization?
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Consider the following relation for published books:BOOK (Book_title, Authorname, Book_type, Listprice, Author_affil, Publisher)Author_affil refers to the affiliation of the author. Suppose the following dependencies exist:Book_title → Publisher, Book_typeBook_type → ListpriceAuthor_name → Author-affil (a) What normal form is the relation in? Explain your answer.(b) Apply normalization until you cannot decompose the relations further. State the reasons behind eachdecomposition.
It is important to build a hybrid merge-join technique in order to accomplish the task of combining two relations that are not physically ordered but do share an index on the features that are in concern.
Create a form of the hybrid merge-join method that is appropriate for the situation in which both relations are not physically sorted, but both have a sorted secondary index on the attributes that are to be combined.
Suppose a user creates a new relation r1 with a foreign key referencing another relation r2. What authorization privilege does the user need on r2? Why should this not simply be allowed without any such authorization?
Consider the scenario below: A user creates a new relation r1 with a foreign key referencing another relation r2. What authorization privileges does the user need on r2 for effective operation? Why should this not be permitted without such authorization?
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