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diff --git a/MySQL_database_creation.sql b/MySQL_database_creation.sql
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+-- Create  database and  table 
+CREATE DATABASE IF NOT EXISTS lab_mysql;
+USE lab_mysql;
+
+-- Drop old tables if exist
+DROP TABLE IF EXISTS invoices;
+DROP TABLE IF EXISTS cars;
+DROP TABLE IF EXISTS customers;
+DROP TABLE IF EXISTS salespersons;
+
+-- Cars table
+CREATE TABLE cars (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    vin VARCHAR(50) UNIQUE NOT NULL,
+    manufacturer VARCHAR(50) NOT NULL,
+    model VARCHAR(50) NOT NULL,
+    year YEAR NOT NULL,
+    color VARCHAR(20) NOT NULL
+);
+
+-- Customers table
+CREATE TABLE customers (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    cust_id INT NOT NULL,
+    cust_name VARCHAR(100) NOT NULL,
+    cust_phone VARCHAR(30),
+    cust_email VARCHAR(100),
+    cust_address VARCHAR(200),
+    cust_city VARCHAR(100),
+    cust_state VARCHAR(100),
+    cust_country VARCHAR(100),
+    cust_zipcode VARCHAR(20)
+);
+
+-- Salespersons table
+CREATE TABLE salespersons (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    staff_id INT NOT NULL,
+    name VARCHAR(100) NOT NULL,
+    store VARCHAR(100)
+);
+
+-- Invoices table
+CREATE TABLE invoices (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    invoice_number BIGINT NOT NULL,
+    date DATE NOT NULL,
+    car_id INT,
+    customer_id INT,
+    salesperson_id INT,
+    FOREIGN KEY (car_id) REFERENCES cars(id),
+    FOREIGN KEY (customer_id) REFERENCES customers(id),
+    FOREIGN KEY (salesperson_id) REFERENCES salespersons(id)
+);
+
+-- challenge 3 seedomg  the database
+INSERT INTO cars (vin, manufacturer, model, year, color) VALUES
+('309','Volkswagen','Tiguan',2019,'Blue'),
+('348','Peugeot','Rifter',2019,'Red'),
+('144','Ford','Fusion',2018,'White'),
+('345','Toyota','RAV4',2018,'Silver'),
+('234','Volvo','V60',2019,'Gray'),
+('456','Volvo','V60 Cross Country',2019,'Gray');
+
+-- Insert customers
+INSERT INTO customers (cust_id, cust_name, cust_phone, cust_email, cust_address, cust_city, cust_state, cust_country, cust_zipcode) VALUES
+(10001,'Pablo Picasso','+49 636 17 63 82',NULL,'Paseo de la Chopera, 14','Madrid','Madrid','Spain','28045'),
+(20001,'Abraham Lincoln','+49 305 907 7086',NULL,'120 SW 8th St','Miami','Florida','United States','33130'),
+(30001,'Napoléon Bonaparte','+49 1 79 75 40 00',NULL,'40 Rue du Colisée','Paris','Île-de-France','France','75008');
+
+-- Insert salespersons
+INSERT INTO salespersons (staff_id, name, store) VALUES
+(00001,'Petey Cruiser','Madrid'),
+(00002,'Anna Sthesia','Barcelona'),
+(00003,'Paul Molive','Berlin'),
+(00004,'Gail Forcewind','Paris'),
+(00005,'Paige Turner','Mimia'),
+(00006,'Bob Frapples','Mexico City'),
+(00007,'Walter Melon','Amsterdam'),
+(00008,'Shonda Leer','São Paulo');
+
+-- Insert invoices
+INSERT INTO invoices (invoice_number, date, car_id, customer_id, salesperson_id) VALUES
+(852399038,'2018-08-22',1,1,3),
+(731166526,'2018-12-31',3,3,5),
+(271135104,'2019-01-22',2,2,7);
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