Consider the following database schema for a library. Book (BookID:int, BookTitle:string(unique), Author:string, publisher:string) Borrowing-Record (BooklD: int, CustomerCPR: int, Date: date, Time: time, Price: double) Customer (CPR:int, name: String) Is it possible to have a Borrowing-Record with unknown CustomerCPR? No, violates key constraint. ONo, violates entity Integrity constraint O No, violates referential integrity constraint. O Yes. No, violates domain constraints.

Consider the following database schema for a library. Book (BookID:int, BookTitle:string(unique), Author:string, publisher:string) Borrowing-Record (BooklD: int, CustomerCPR: int, Date: date, Time: time, Price: double) Customer (CPR:int, name: String) Is it possible to have a Borrowing-Record with unknown CustomerCPR? No, violates key constraint. ONo, violates entity Integrity constraint O No, violates referential integrity constraint. O Yes. No, violates domain constraints.

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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