addSql('ALTER TABLE clients ADD date_legitimacy DATE NOT NULL, ADD date_proclamation DATE NOT NULL, CHANGE str_company_name str_name VARCHAR(255) NOT NULL'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('ALTER TABLE clients DROP date_legitimacy, DROP date_proclamation, CHANGE str_name str_company_name VARCHAR(255) NOT NULL'); } }