The project is an online food ordering system (like 'Yemeksepeti'). It is not connected to the internet, it is a desktop app that uses a local database. There are three user logins. These are for restaurants, for customers and for carriers.

SQL commands to create the local database:

CREATE TABLE Customers( customerID INT AUTO_INCREMENT PRIMARY KEY, firstName VARCHAR(50), lastName VARCHAR(50), email VARCHAR(50), password VARCHAR(50), address VARCHAR(50), phoneNumber VARCHAR(50) );

CREATE TABLE Restaurants( restaurantID INT AUTO_INCREMENT PRIMARY KEY, restaurantName VARCHAR(50), email VARCHAR(50), password VARCHAR(50), address VARCHAR(50), phoneNumber VARCHAR(50) );

CREATE TABLE Items( itemID INT AUTO_INCREMENT PRIMARY KEY, itemName VARCHAR(50), price DECIMAL(5,2), foodType VARCHAR(50), restaurantID INT, FOREIGN KEY (restaurantID) REFERENCES Restaurants (restaurantID) );

CREATE TABLE Reviews( reviewID INT AUTO_INCREMENT PRIMARY KEY, itemID INT, customerID INT, reviewText VARCHAR(250), rating INT, date DATE, FOREIGN KEY (customerID) REFERENCES Customers (customerID), FOREIGN KEY (itemID) REFERENCES Items (itemID) );

CREATE TABLE Carriers( carrierID INT AUTO_INCREMENT PRIMARY KEY, firstName VARCHAR(50), lastName VARCHAR(50), email VARCHAR(50), password VARCHAR(50), phoneNumber VARCHAR(50) );

CREATE TABLE Orders( orderID INT AUTO_INCREMENT PRIMARY KEY, orderDate DATE, paymentMethod VARCHAR(50), customerID INT, carrierID INT, FOREIGN KEY (customerID) REFERENCES Customers (customerID), FOREIGN KEY (carrierID) REFERENCES Carriers (carrierID) );

CREATE TABLE OrderDetails( orderDetailsID INT AUTO_INCREMENT PRIMARY KEY, orderID INT, itemID INT NOT NULL, quantity INT, FOREIGN KEY (orderID) REFERENCES Orders (orderID), FOREIGN KEY (itemID) REFERENCES Items (itemID) );