execute( 'CREATE TABLE IF NOT EXISTS employees ( id INTEGER PRIMARY KEY AUTOINCREMENT, first_name VARCHAR(100) NOT NULL, last_name VARCHAR(100) NOT NULL, email VARCHAR(255) NOT NULL UNIQUE, department VARCHAR(100) NOT NULL, job_title VARCHAR(150) NOT NULL, start_date DATE NOT NULL, created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP )' ); } public function down(Database $database): void { $database->execute('DROP TABLE IF EXISTS employees'); } };