The dependency diagram is in the attached image. How to transform to 2Nf, 3NF and BCNF?

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
icon
Related questions
Question
100%

The dependency diagram is in the attached image. How to transform to 2Nf, 3NF and BCNF?

**Transcription for Educational Website:**

**Title: Understanding Dependency Diagrams in Normal Forms**

Assume that the following dependency diagram is already in 1NF (First Normal Form). Use the diagram to answer questions 1-3.

**Dependency Diagram:**

- The diagram consists of rectangles labeled from A to J.
- Arrows indicate dependencies between these elements:
  - **A** depends on **B, C, and D** (blue arrow).
  - **B** depends on **E** (red arrow).
  - **C** depends on **F** (orange arrow).
  - **D** depends on **G, H, and I** (green arrow).
  - **E** and **G** both point back to **B** using a purple arrow.

**Questions:**

1. **Create dependency diagrams that are in 2NF (Second Normal Form).**
2. **Further convert the diagrams to a set of diagrams that are in 3NF (Third Normal Form).**
3. **Would any further changes need to be made to the diagrams from Question 2 in order for the structures to meet BCNF (Boyce-Codd Normal Form)? Why or why not?**

---

**Diagram Explanation:**

The diagram is a visual representation of data attributes and their dependencies, illustrating how each attribute is functionally dependent on others. The arrows depict the direction of dependency between attributes, essential for organizing data efficiently to avoid redundancy and ensure consistency within a database.
Transcribed Image Text:**Transcription for Educational Website:** **Title: Understanding Dependency Diagrams in Normal Forms** Assume that the following dependency diagram is already in 1NF (First Normal Form). Use the diagram to answer questions 1-3. **Dependency Diagram:** - The diagram consists of rectangles labeled from A to J. - Arrows indicate dependencies between these elements: - **A** depends on **B, C, and D** (blue arrow). - **B** depends on **E** (red arrow). - **C** depends on **F** (orange arrow). - **D** depends on **G, H, and I** (green arrow). - **E** and **G** both point back to **B** using a purple arrow. **Questions:** 1. **Create dependency diagrams that are in 2NF (Second Normal Form).** 2. **Further convert the diagrams to a set of diagrams that are in 3NF (Third Normal Form).** 3. **Would any further changes need to be made to the diagrams from Question 2 in order for the structures to meet BCNF (Boyce-Codd Normal Form)? Why or why not?** --- **Diagram Explanation:** The diagram is a visual representation of data attributes and their dependencies, illustrating how each attribute is functionally dependent on others. The arrows depict the direction of dependency between attributes, essential for organizing data efficiently to avoid redundancy and ensure consistency within a database.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

Blurred answer
Knowledge Booster
Normalization
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education