text: DROP TABLE IF EXISTS products;
  CREATE TABLE products (
    id    SERIAL PRIMARY KEY,
    name  VARCHAR(100) NOT NULL,
    brand VARCHAR(100) NULL,
    price NUMERIC(9,2)
  );
  INSERT INTO products (name, brand, price) VALUES ('Product6', 'Brand1', 16.22);
  INSERT INTO products (name, brand, price) VALUES ('Product7', 'Brand1', 15.30);
  INSERT INTO products (name, brand, price) VALUES ('Product8', 'Brand2', 12.17);
  INSERT INTO products (name, brand, price) VALUES ('Product9', 'Brand2', 11.32);
  INSERT INTO products (name, brand, price) VALUES ('Product10', 'Brand2', 17.24);
  