Find instructions in attached file.You may also use MySQL sy…
Find instructions in attached file. You may also use MySQL syntax and note pad to create the DB from the normalized ER model from assignment 3 (also attached). Purchase the answer to view it Purchase the answer to view it Purchase the answer to view it
Answer
Instructions for Creating a Database from a Normalized ER Model
Introduction:
In this document, we will provide detailed instructions on how to create a database from a normalized Entity-Relationship (ER) model. The ER model is a conceptual representation of the data requirements for a system, and normalization is the process of organizing data to minimize redundancy and improve efficiency.
Prerequisites:
Before proceeding with the creation of the database, ensure that you have the following prerequisites in place:
1. MySQL: Install the latest version of MySQL on your system. MySQL is a popular open-source relational database management system.
2. MySQL Workbench: Download and install MySQL Workbench, a visual database design and modeling tool that allows you to create, visualize, and modify the database schema.
3. Notepad or a text editor: You will need a text editor such as Notepad to prepare the SQL statements for creating the tables and defining relationships.
Procedure:
Step 1: Review the Normalized ER Model:
Begin by reviewing the normalized ER model provided in the attached file. This document outlines the tables, attributes, and relationships involved in the database schema. Familiarize yourself with the structure and relationships between entities.
Step 2: Create a New MySQL Schema:
Open MySQL Workbench and connect to your MySQL server. Create a new schema for your database. In the Workbench, go to the “Server” menu, select “Data Import,” and choose “Create Schema.” Enter a name for the schema and click “Apply.”
Step 3: Create Tables:
Now, in the Workbench, navigate to the “Model Overview” panel. Right-click on the canvas and select “Create Table.” Enter the table name, followed by the attributes and their respective data types as specified in the ER model. Repeat this step for each table in the ER model.
Step 4: Define Relationships:
On the canvas, select the “Relationship” tool from the toolbar. Click on one of the tables involved in the relationship, and then click on the referenced table to create a line representing the relationship. Double-click on the relationship line to define the cardinality and participation constraints. Repeat this step for each relationship in the ER model.
Step 5: Generate SQL Script:
Once you have created all the tables and defined the relationships, go to the “File” menu and select “Export” > “Forward Engineer SQL Alter Script.” Choose the option to generate the script for the entire database schema. Save the SQL file to your desired location.
Step 6: Execute SQL Script:
Open the SQL file in Notepad or a text editor. Review the script and make any necessary modifications. Ensure that the script is using the correct schema name. Save the changes and execute the SQL script using the MySQL command-line interface or through MySQL Workbench.
Conclusion:
By following the above steps, you will be able to create a database from a normalized ER model. This process enables you to convert the conceptual representation of the data into a tangible database schema. It is important to ensure that the ER model is properly normalized to eliminate redundancy and maintain data integrity.