Solution

task.sql

@@ -1 +1,38 @@
-# Write your SQL code for the database creation here. Good luck! 
+CREATE DATABASE IF NOT EXISTS ShopDB;
+USE ShopDB;
+
+DROP TABLE IF EXISTS OrderItems;
+DROP TABLE IF EXISTS Orders;
+DROP TABLE IF EXISTS Products;
+DROP TABLE IF EXISTS Customers;
+
+CREATE TABLE Products (
+  ID INT AUTO_INCREMENT PRIMARY KEY,
+  Name VARCHAR(50),
+  Description VARCHAR(100),
+  Price INT,
+  WarehouseAmount INT
+);
+
+CREATE TABLE Customers (
+  ID INT AUTO_INCREMENT PRIMARY KEY,
+  FirstName VARCHAR(50),
+  LastName VARCHAR(50),
+  Email VARCHAR(100),
+  Address VARCHAR(100)
+);
+
+CREATE TABLE Orders (
+  ID INT AUTO_INCREMENT PRIMARY KEY,
+  CustomerID INT NULL,
+  Date DATE,
+  FOREIGN KEY (CustomerID) REFERENCES Customers(ID) ON DELETE SET NULL
+);
+
+CREATE TABLE OrderItems (
+  ID INT AUTO_INCREMENT PRIMARY KEY,
+  OrderID INT NULL,
+  ProductID INT NULL,
+  FOREIGN KEY (OrderID) REFERENCES Orders(ID) ON DELETE SET NULL,
+  FOREIGN KEY (ProductID) REFERENCES Products(ID) ON DELETE SET NULL
+);