Easy MCQ please answer fast Question 7A relation is said to be in 1NF ifOthere are only a few multi-valued attributesO all attributes are the same type.Othere is no duplication of datathere are no multi-valued attributes in the relationQuestion 3How do you select all the records from a table named "Persons" where the "FirstName" "Peter"and the "LastName" is not "Jackson"?O SELECT * FROM Persons WHERE FirstName<>"Peter' AND LastName<>'Jackson'SELECT FirstName-Peter, LastName='Jackson' FROM PersonsSELECT * FROM Persons WHERE FirstName="Peter" AND LastName<> JacksonO SELECT * FROM Persons WHERE FirstName-Peter' AND LastName NOT 'Jackson'Question 10Given the following relation, it is not 3 NF becauseStudent (student id, name, year of study, address, course_id, course name)O it does not have composite keyO non-key attribute course_name is functionally dependent on course_id and not student_idO it does not have composite keyO it has more than 3 non-key attributes

Question 7: A relation is in first normal form (INF for short) if the domains of all its attributes…

Question 7 A relation is said to be in 1NF if Othere are only a few multi-valued attributes O all attributes are the same type Othere is no duplication of data there are no multi-valued attributes in the relation Question 3 How do you select all the records from a table named "Persons" where the "FirstName" is "Peter" and the "LastName" is not "Jackson"? O SELECT * FROM Persons WHERE FirstName< Peter AND LastName Jackson O SELECT * FROM Persons WHERE FirstName-Peter AND LastName NOT Jackson' Question 10 Given the following relation, it is not 3 NF because Student (student id, name, year of study, address, course_id, course name) O it does not have composite key O non-key attribute course name is functionally dependent course_id and not student id it does not have composite key it has more than 3 non-key attributes

Question 7 A relation is said to be in 1NF if Othere are only a few multi-valued attributes O all attributes are the same type Othere is no duplication of data there are no multi-valued attributes in the relation Question 3 How do you select all the records from a table named "Persons" where the "FirstName" is "Peter" and the "LastName" is not "Jackson"? O SELECT * FROM Persons WHERE FirstName< Peter AND LastName Jackson O SELECT * FROM Persons WHERE FirstName-Peter AND LastName NOT Jackson' Question 10 Given the following relation, it is not 3 NF because Student (student id, name, year of study, address, course_id, course name) O it does not have composite key O non-key attribute course name is functionally dependent course_id and not student id it does not have composite key it has more than 3 non-key attributes

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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