text: DROP DATABASE IF EXISTS `pschooltrainers`;
  
  CREATE DATABASE IF NOT EXISTS `pschooltrainers`;
  USE `pschooltrainers`;
  CREATE TABLE IF NOT EXISTS `trainers` (
      `id` INT NOT NULL AUTO_INCREMENT,
      `first_name` VARCHAR(20) NULL DEFAULT NULL,
      `last_name` VARCHAR(30) NULL DEFAULT NULL,
      `subject` VARCHAR(20) NULL DEFAULT NULL,
      PRIMARY KEY (`id`)
  );
  
  INSERT INTO `trainers`(`first_name`, `last_name`, `subject`) VALUES ("Nikos","Nikolakos","Database");
  INSERT INTO `trainers`(`first_name`, `last_name`, `subject`) VALUES ("Stamatis","Theodoridis","FrontEnd");
  INSERT INTO `trainers`(`first_name`, `last_name`, `subject`) VALUES ("Eleni","Louka","BackEnd");