1.5) An attribute can be atomic, composite, or multivaluedTrue False 1.6) Constraints should be used to force valid data entry / modification to the databaseTrue False 1.7) A primary key can contain only single row with null value since duplicate values are not allowedTrue False 1.8) Comparison with null can be meaningfully done with equals and not equals operatorTrue False  False O1.5) An attribute can be atomic, composite, or multivalued1.6) Constraints should be used to force valid data entry / modification to the databaseTrue OTrue OFalse O1.7) A primary key can contain only single row with null value since duplicate values are not allowed1.8) Comparison with null can be meaningfully done with equals and not equals operatorTrue OFalseTrue OFalse O

Answered: An attribute can be atomic, composite,…

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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Concept explainers

Question

1.5) An attribute can be atomic, composite, or multivalued
True 
False 
1.6) Constraints should be used to force valid data entry / modification to the database
True 
False 
1.7) A primary key can contain only single row with null value since duplicate values are not allowed
True 
False 
1.8) Comparison with null can be meaningfully done with equals and not equals operator
True 
False 

False O
1.5) An attribute can be atomic, composite, or multivalued
1.6) Constraints should be used to force valid data entry / modification to the database
True O
True O
False O
1.7) A primary key can contain only single row with null value since duplicate values are not allowed
1.8) Comparison with null can be meaningfully done with equals and not equals operator
True O
False
True O
False O

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