Exercises1. Identify and discuss the distinct types of dependencies in the diagram shown inFigure 4.4.CiC2C3C4C5Figure 4.4 Dependency DiagramTable 4.5CivilldContractNoHoursEmpNameDepNoDepName69856963С1045Sultan6IT55423661С1115AmnaEngineering69856963C1520Sultan5Engineering69589637C1918Ahmed2Sciencea) This table is susceptible to update anomalies. Provide examples of insertion,deletion and update anomalies.

The Dependency Diagram displays a graphical view of the complex relationships between the various…

Answered: 1. Identify and discuss the distinct…

1. Identify and discuss the distinct types of dependencies in the diagram shown in Figure 4.4. Ci C2 C3 C4 C5 Figure 4.4 Dependency Diagram

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

Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.

Question

Exercises
1. Identify and discuss the distinct types of dependencies in the diagram shown in
Figure 4.4.
Ci
C2
C3
C4
C5
Figure 4.4 Dependency Diagram
Table 4.5
Civilld
ContractNo
Hours
EmpName
DepNo
DepName
69856963
С10
45
Sultan
6
IT
55423661
С11
15
Amna
Engineering
69856963
C15
20
Sultan
5
Engineering
69589637
C19
18
Ahmed
2
Science
a) This table is susceptible to update anomalies. Provide examples of insertion,
deletion and update anomalies.

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