Ecosyste.ms: Awesome

An open API service indexing awesome lists of open source software.

Awesome Lists | Featured Topics | Projects

https://github.com/ngljcb/px-order-mgmt-system

Implements a relational database for Sneakerheads, applying core Database Management System (DBMS) concepts. It manages customer orders, products, inventory, carts, and invoices, streamlining the ordering process and ensuring efficient data management for both customers and internal operations.
https://github.com/ngljcb/px-order-mgmt-system

basi-di-dati database mysql query query-language relational-database sql

Last synced: 10 days ago
JSON representation

Implements a relational database for Sneakerheads, applying core Database Management System (DBMS) concepts. It manages customer orders, products, inventory, carts, and invoices, streamlining the ordering process and ensuring efficient data management for both customers and internal operations.

Awesome Lists containing this project

README 

        
# Order Management System - Sneaker-Head






### Project Overview

This project implements a relational database for Sneaker-Head, a sports shoe company managing customer orders, products, carts, invoices, and inventory. The database helps streamline the ordering process and handle data efficiently for both customers and internal operations.



### Technologies Used

- **Database**: MySQL

- **Languages**: SQL for schema definition, queries, stored procedures, and triggers

- **Conceptual Model**: Entity-Relationship (ER) diagram, normalized into a relational schema



## System Design



### 1. Requirements Gathering

The database manages the following key entities and interactions:

- **Customers**: Identified by `username`, with details like name, email, address, phone number, and optional VAT number.

- **Products**: Each product has a unique `idProdotto`, including a name, category, manufacturer, production year, and price.

- **Cart**: Tracks products a customer adds to their cart, including the quantity and total cost.

- **Orders**: Associated with customers and include order details like `numOrdine`, `dataOrdine`, shipping costs, and order status.

- **Invoices**: Generated after order confirmation with information like `idFattura`, discount, and total cost.

- **Inventory**: Tracks available stock for products by a unique `barcode`.



### 2. Conceptual Design (ER Model)

The system was designed using an Entity-Relationship (ER) diagram. The main entities include:

- **Customer**, **Product**, **Cart**, **Order**, **Invoice**, **Inventory**.

- Relationships include many-to-many between products and carts, one-to-many between customers and orders, and one-to-one between orders and invoices.



### 3. Logical Design (Relational Model)

The ER model was transformed into the following relational schema, now matching the SQL structure:



#### **Tables**

- **Cliente (Customer)**:

  - `username (PK)`, `nome`, `email`, `indirizzo`, `partitaIva`, `telefono`

  

- **Prodotto (Product)**:

  - `idProdotto (PK)`, `nome`, `categoria`, `produttore`, `anno`, `prezzo`

  

- **Giacenza (Inventory)**:

  - `barcode (PK, AUTO_INCREMENT)`, `idProdotto (FK)`

  

- **Carrello (Cart)**:

  - `idCarrello (PK, AUTO_INCREMENT)`, `quantita`, `costoTotale`

  

- **Ordine (Order)**:

  - `numOrdine (PK, AUTO_INCREMENT)`, `dataOrdine`, `speseSpedizione`, `stato`, `idCarrello (FK)`

  

- **Fattura (Invoice)**:

  - `idFattura (PK, AUTO_INCREMENT)`, `sconto`, `dataFattura`, `numOrdine (FK)`

  

- **Effettuazione (Order Placement)**:

  - `numOrdine (FK)`, `username (FK)` (primary key is a composite of these two fields)

  

- **Inserimento (Cart Product Entry)**:

  - `barcode (FK)`, `idCarrello (FK)` (primary key is a composite of these two fields)



### 4. Functions, Procedures, and Triggers



- **Stored Procedure `procedure_calcola_costototale`**: This procedure calculates and updates the total cost for a given cart based on the products and quantities added.

- **Trigger `trigger_calcola_quantita`**: This trigger updates the quantity in the cart whenever a new product is added.

- **Trigger `trigger_calcola_prezzo`**: Automatically calls the `procedure_calcola_costototale` when a new order is placed, updating the cart's total cost.

- **Function `function_fatturato_per_cliente`**: Returns the number of invoices for a specific customer.



### 5. Views

- **`view_ordini_in_corso`**: A view that retrieves orders currently in progress, showing order number, date, cart quantity, total cost, shipping expenses, and customer information.



---



## ER Diagram

The following ER diagram represents the database structure:






## Usage



### Adding Customers

To add new customers, use the following SQL command:

```sql

INSERT INTO Cliente (username, nome, email, indirizzo, partitaIva, telefono)

VALUES ('john_doe', 'John Doe', '[email protected]', '123 Street, City', '12345678901', '1234567890');

```



### Placing an Order

Once products are added to the cart, an order can be placed:

```sql

INSERT INTO Ordine (dataOrdine, speseSpedizione, stato, idCarrello)

VALUES ('2024-10-05', 15.00, 'in corso', 1);

```



### Generating an Invoice

After confirming an order, generate the invoice:

```sql

INSERT INTO Fattura (sconto, dataFattura, numOrdine)

VALUES (10.00, '2024-10-06', 1);

```



### Querying Available Inventory

To query the available stock for a particular product:

```sql

SELECT p.nome, g.barcode

FROM Prodotto p

JOIN Giacenza g ON p.idProdotto = g.idProdotto

WHERE p.nome = 'Air Jordan';

```



---



## Key Queries



### Find customers with VAT ending in '8':

```sql

SELECT * FROM Cliente WHERE partitaIva IS NOT NULL AND partitaIva LIKE '%8';

```



### Find products available in inventory for 'Air Jordan' models:

```sql

SELECT idProdotto FROM Prodotto WHERE nome LIKE 'Air Jordan %';

```



---