Please remember that while testing or using any app online use meaningfull data and dont be a fool like m...ahem..certain people i know.

Contact Management System Documentation

Overview

This project implements a simple contact management system using SQLite as the backend database. It allows users to perform various operations such as adding new contacts, deleting contacts, updating contact information, and checking if a contact exists by name ,all done with dictionary in python. This system is designed to be simple and make use of command line as UI.

Database Setup

The project uses a SQLite database named contacts.db to store contact information. The database has a single table named contacts with the following schema:

👉name: The contact's name (Primary Key)

👉phone_number: The contact's phone number

Features

The following operations are available to manage contacts:

👉Insert Contact Adds a new contact with a given name and phone number. If a contact with the same name already exists, it is replaced with the new phone number.

👉Clear All Contacts Deletes all contacts from the database.

👉Delete a Contact Deletes a contact by name.

👉Add or Update Contact Adds a new contact or updates the phone number of an existing contact.

👉Display All Contacts Displays a list of all contacts in the database.

👉Check Contact by Name Checks if a contact with a given name exists, and if so, displays the phone number.

👉Exit Closes the database connection and exits the program.

How to Use

👉Run the Script Execute the Python script to start the contact management system.

Select an Option

A menu will appear with different operations. Enter the corresponding number for the desired operation.

👉Perform the Operation

Depending on the chosen option, follow the prompts to enter information or confirm actions.

👉Exit To exit the program, select option 7. This will close the database connection safely.

Please understand that I have not implemented this with a real web-based UI or an app because I focus on completing my projects through the command line for testing purposes initially. I recognize that the command line may seem a bit old-fashioned, but it provides all the necessary operations just like a web interface or an app. Thank you for your time, and have a great day!.