text: USE CompuHardware;
  CREATE TABLE Products(
  	id INT NOT NULL AUTO_INCREMENT,
      name NVARCHAR(50) NOT NULL,
      quantity INT NOT NULL,
      price DECIMAL(10,2) NOT NULL,
      categoryId INT NOT NULL,
      imageFileName NVARCHAR(40) DEFAULT 'default_img',
      createdAt DATETIME DEFAULT CURRENT_TIMESTAMP,
      CONSTRAINT PK_Products PRIMARY KEY(id),
      CONSTRAINT FK_Categories_Products FOREIGN KEY(categoryId) REFERENCES Categories(id)
  );
  ALTER TABLE Products DROP COLUMN imageFileName;
  ALTER TABLE Products ADD COLUMN imageFileName NVARCHAR(120) default 'default_img';