Create an unnormalised table for a database schema

Assignment Help Database Management System

Reference no: EM133914091

Assessment Instructions

To normalise a database schema from its initial unnormalised state to the third normal form (3NF) and document each process step, including dependency diagrams.

Steps to Follow:

Use ChatGPT (free version) to create an unnormalised table for a database schema and a scenario that describes the database's context and purpose. Get top-rated assignment help now.

Example Prompt for ChatGPT:

• "Generate an unnormalised table for a database related to a University Course management system. The suggested database should include at least eight attributes and eight records with all the different dependencies."

Carefully examine the generated table and scenario to understand the structure and the data stored in the database.

List all functional dependencies in the unnormalised schema (the original tables).

Transform to the first normal form (1NF) and ensure the table complies with the first normal form (1NF) rules. Draw the dependency diagram for the table in 'INF.

Transform to the second normal form (2NF) and draw the dependency diagram for the table(s) in 2NF.

Transform to the third normal form (3NF) and draw the table(s) dependency diagram in 3NF.

Document the final set of tables, including table names, attributes, and primary and foreign keys.

Provide a step-by-step explanation of how you transformed the schema from its initial form to 1 NF, then to 2NF, and finally to 3NF.

Compile your analysis, normalisation steps, and dependency diagrams into a single document.

Your Task
This assessment is to be completed individually. You will use ChatGPT (free version) to generate an initial table for a database schema and a corresponding scenario. You will then use ChatGPT (free version) to analyse the schema, identify the dependencies, and normalise the schema step-by-step through the first normal form (1NF), the second normal form (2NF), and the third normal form (3NF).

Assessment Description

This assessment evaluates your understanding and application of database normalisation principles. You will transform an unnormalised database schema into its highest normalised form, typically the third normal form (3NF). You will use ChatGPT (free version) to generate an initial table fora database schema and a corresponding scenario. Your task involves analysing the schema, identifying dependencies, and normalising the schema while documenting your process. You will also create dependency diagrams for each table at each normalisation stage.

This assessment aims to achieve the following subject learning outcomes:

Construct database models.

Use normalisation techniques for the purpose of data integrity.

Reference no: EM133914091

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