diff --git a/CREATE.sql b/CREATE.sql
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+++ b/CREATE.sql
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+CREATE DATABASE IF NOT EXISTS lab_mysql;
+USE lab_mysql;
+
+DROP TABLE IF EXISTS invoices;
+DROP TABLE IF EXISTS cars;
+DROP TABLE IF EXISTS customers;
+DROP TABLE IF EXISTS salespersons;
+
+CREATE TABLE cars (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    vin VARCHAR(50) UNIQUE NOT NULL,
+    make VARCHAR(50) NOT NULL,
+    model VARCHAR(50) NOT NULL,
+    year INT NOT NULL,
+    color VARCHAR(30)
+);
+
+CREATE TABLE customers (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    customer_id INT UNIQUE NOT NULL,
+    name VARCHAR(100) NOT NULL,
+    phone VARCHAR(50),
+    email VARCHAR(100),
+    address VARCHAR(150),
+    city VARCHAR(50),
+    state VARCHAR(50),
+    country VARCHAR(50),
+    postal_code VARCHAR(20)
+);
+
+CREATE TABLE salespersons (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    staff_id INT UNIQUE NOT NULL,
+    name VARCHAR(100) NOT NULL,
+    store VARCHAR(50)
+);
+
+CREATE TABLE invoices (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    invoice_number BIGINT UNIQUE NOT NULL,
+    date DATE NOT NULL,
+    car_id INT NOT NULL,
+    customer_id INT NOT NULL,
+    salesperson_id INT NOT NULL,
+    FOREIGN KEY (car_id) REFERENCES cars(id),
+    FOREIGN KEY (customer_id) REFERENCES customers(id),
+    FOREIGN KEY (salesperson_id) REFERENCES salespersons(id)
+);
diff --git a/DELETE.sql b/DELETE.sql
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+SELECT name, email FROM customers;
+
diff --git a/DIAGRAMA ERD.png b/DIAGRAMA ERD.png
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Binary files /dev/null and b/DIAGRAMA ERD.png differ
diff --git a/SEEDING.sql b/SEEDING.sql
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+++ b/SEEDING.sql
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+USE lab_mysql;
+
+-- Insertar coches
+INSERT INTO cars (vin, make, model, year, color) VALUES
+('3K096I98581DHSNUP', 'Volkswagen', 'Tiguan', 2019, 'Azul'),
+('ZM8G7BEUQZ97IH46V', 'Peugeot', 'Rifter', 2019, 'Rojo'),
+('RKXVNNIHLVVZOUB4M', 'Ford', 'Fusion', 2018, 'Blanco'),
+('HKNDGS7CU31E9Z7JW', 'Toyota', 'RAV4', 2018, 'Plata'),
+('DAM41UDN3CHU2WVF6', 'Volvo', 'V60', 2019, 'Gris'),
+('DAM41UDN3CHU2WVF6', 'Volvo', 'V60 Cross Country', 2019, 'Gris');
+
+-- Insertar clientes
+INSERT INTO customers (customer_id, name, phone, email, address, city, state, country, postal_code) VALUES
+(10001, 'Pablo Picasso', '+34 636 17 63 82', NULL, 'Paseo de la Chopera, 14', 'Madrid', 'Madrid', 'España', '28045'),
+(20001, 'Abraham Lincoln', '+1 305 907 7086', NULL, '120 SW 8th St', 'Miami', 'Florida', 'Estados Unidos', '33130'),
+(30001, 'Napoleón Bonaparte', '+33 1 79 75 40 00', NULL, '40 Rue du Colisée', 'París', 'Isla de Francia', 'Francia', '75008');
+
+-- Insertar vendedores
+INSERT INTO salespersons (staff_id, name, store) VALUES
+(1, 'Crucero Petey', 'Madrid'),
+(2, 'Ana Sthesia', 'Barcelona'),
+(3, 'Pablo Molive', 'Berlina'),
+(4, 'Gail Forcewind', 'París'),
+(5, 'Paige Turner', 'Mimia'),
+(6, 'Bob Frapples', 'Ciudad de México'),
+(7, 'Walter Melón', 'Ámsterdam'),
+(8, 'Shonda Leer', 'São Paulo');
+
+-- Insertar facturas
+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);
diff --git a/UPDATE.sql b/UPDATE.sql
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+++ b/UPDATE.sql
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+USE lab_mysql;
+SELECT * FROM cars;
+SELECT * FROM customers;
+SELECT * FROM salespersons;
+SELECT * FROM invoices;