I need you solve this question (Based on the Un-Normalized database table below, create a data model for a Rental Car

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
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I need you solve this question (Based on the Un-Normalized database table below, create a data model for a Rental Car
agency by normalizing them with 2nd and 3rd normal forms.) i need you to complete just like the second image in hand written

**Title: Normalization in Database Design**

**Description:**

This educational section explains how to normalize an un-normalized database table for a rental car agency, focusing on the second and third normal forms. 

**Un-Normalized Database Table:**

| Car ID | Car Type | Base Rent | Cust ID | Name  | DOB   | Age | Cust Address  | Date of Booking | Service Name | Service Charge |
|--------|----------|-----------|---------|-------|-------|-----|---------------|----------------|--------------|----------------|
| 501    | Sedan    | $40       | 10001   | John  | 1/8/80| 34  | 300 Main St   | 4/22/14        | GPS          | $15.00         |
| 501    | Sedan    | $40       | 10001   | John  | 1/8/80| 34  | 300 Main St   | 4/22/14        | EzPass       | $10.00         |
| 501    | Sedan    | $40       | 10001   | John  | 1/8/80| 34  | 300 Main St   | 4/22/14        | Full tank    | $40.00         |
| 502    | SUV      | $60       | 10001   | John  | 1/8/80| 34  | 300 Main St   | 3/15/13        | GPS          | $15.00         |
| 502    | SUV      | $60       | 10001   | John  | 1/8/80| 34  | 300 Main St   | 3/15/13        | Bluetooth    | $30.00         |
| 501    | Sedan    | $40       | 10002   | Jill  | 4/15/74| 40  | 123 Wall St   | 4/20/14        | Moon Roof    | $15.00         |
| 501    | Sedan    | $40       | 10002   | Jill  | 4/15/74| 40  | 123 Wall St   | 4/20/14        | Leather Seats| $20.00         |

**Explanation:**

The table contains columns including Car
Transcribed Image Text:**Title: Normalization in Database Design** **Description:** This educational section explains how to normalize an un-normalized database table for a rental car agency, focusing on the second and third normal forms. **Un-Normalized Database Table:** | Car ID | Car Type | Base Rent | Cust ID | Name | DOB | Age | Cust Address | Date of Booking | Service Name | Service Charge | |--------|----------|-----------|---------|-------|-------|-----|---------------|----------------|--------------|----------------| | 501 | Sedan | $40 | 10001 | John | 1/8/80| 34 | 300 Main St | 4/22/14 | GPS | $15.00 | | 501 | Sedan | $40 | 10001 | John | 1/8/80| 34 | 300 Main St | 4/22/14 | EzPass | $10.00 | | 501 | Sedan | $40 | 10001 | John | 1/8/80| 34 | 300 Main St | 4/22/14 | Full tank | $40.00 | | 502 | SUV | $60 | 10001 | John | 1/8/80| 34 | 300 Main St | 3/15/13 | GPS | $15.00 | | 502 | SUV | $60 | 10001 | John | 1/8/80| 34 | 300 Main St | 3/15/13 | Bluetooth | $30.00 | | 501 | Sedan | $40 | 10002 | Jill | 4/15/74| 40 | 123 Wall St | 4/20/14 | Moon Roof | $15.00 | | 501 | Sedan | $40 | 10002 | Jill | 4/15/74| 40 | 123 Wall St | 4/20/14 | Leather Seats| $20.00 | **Explanation:** The table contains columns including Car
The handwritten note appears to outline a database schema with primary and foreign keys to reference various entities related to a project management system. Below is the transcription of the text:

1. **PK: Projcode + EmpNo**

2. **Project (Projcode (PK), ProjectName, ProjectMgr, ProjectBudget)**
   - **Employee (EmpNo (PK), EmployeeName, DeptNo, DeptName, HourlyRate)**
   - **EmpProject (Projcode (FK), EmpNo (FK))**

3. **Dept (DeptNo (PK), DeptName)**
   - **Employee (EmpNo (PK), EmployeeName, DeptNo, HourlyRate)**
   - **PM (PMID (PK), PMName)**
   - **Project (Projcode (PK), ProjName, PMID, ProjectBudget)**
   - **EmpProject (Projcode (FK), EmpNo (FK))**

### Explanation:

1. **Primary Key (PK):** 
   - The primary key is a unique identifier for records in a database. In this context, it is a combination of `Projcode` and `EmpNo`.

2. **Project Entity:**
   - Holds information about various projects with attributes like `Projcode` for project code, `ProjectName` for the name of the project, `ProjectMgr` for the manager, and `ProjectBudget` for the budget.

3. **Employee Entity:**
   - Contains details about employees such as `EmpNo` for employee number, `EmployeeName`, `DeptNo` and `DeptName` for department details, and `HourlyRate`.

4. **EmpProject Entity:**
   - A junction table that relates employees to projects using foreign keys: `Projcode (FK)` and `EmpNo (FK)`.

5. **Department (Dept) Entity:**
   - Describes departments with `DeptNo` and `DeptName`.

6. **PM (Project Manager) Entity:**
   - Represents project managers with `PMID` for ID and `PMName` for name.

7. **Additional Notes:**
   - Some entities are repeated within different contexts to illustrate multiple relationships, like `Project` and `Employee`.

The handwritten structure outlines relationships between projects, employees, departments, and project managers, exemplifying a typical relational database design approach.
Transcribed Image Text:The handwritten note appears to outline a database schema with primary and foreign keys to reference various entities related to a project management system. Below is the transcription of the text: 1. **PK: Projcode + EmpNo** 2. **Project (Projcode (PK), ProjectName, ProjectMgr, ProjectBudget)** - **Employee (EmpNo (PK), EmployeeName, DeptNo, DeptName, HourlyRate)** - **EmpProject (Projcode (FK), EmpNo (FK))** 3. **Dept (DeptNo (PK), DeptName)** - **Employee (EmpNo (PK), EmployeeName, DeptNo, HourlyRate)** - **PM (PMID (PK), PMName)** - **Project (Projcode (PK), ProjName, PMID, ProjectBudget)** - **EmpProject (Projcode (FK), EmpNo (FK))** ### Explanation: 1. **Primary Key (PK):** - The primary key is a unique identifier for records in a database. In this context, it is a combination of `Projcode` and `EmpNo`. 2. **Project Entity:** - Holds information about various projects with attributes like `Projcode` for project code, `ProjectName` for the name of the project, `ProjectMgr` for the manager, and `ProjectBudget` for the budget. 3. **Employee Entity:** - Contains details about employees such as `EmpNo` for employee number, `EmployeeName`, `DeptNo` and `DeptName` for department details, and `HourlyRate`. 4. **EmpProject Entity:** - A junction table that relates employees to projects using foreign keys: `Projcode (FK)` and `EmpNo (FK)`. 5. **Department (Dept) Entity:** - Describes departments with `DeptNo` and `DeptName`. 6. **PM (Project Manager) Entity:** - Represents project managers with `PMID` for ID and `PMName` for name. 7. **Additional Notes:** - Some entities are repeated within different contexts to illustrate multiple relationships, like `Project` and `Employee`. The handwritten structure outlines relationships between projects, employees, departments, and project managers, exemplifying a typical relational database design approach.
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