addSql('ALTER TABLE parts ADD orderamount DOUBLE PRECISION NOT NULL DEFAULT 0, ADD orderDate DATETIME'); } public function mySQLDown(Schema $schema): void { $this->addSql('ALTER TABLE `parts` DROP orderamount, DROP orderDate'); } public function sqLiteUp(Schema $schema): void { $this->addSql('ALTER TABLE parts ADD COLUMN orderamount DOUBLE PRECISION NOT NULL DEFAULT 0'); $this->addSql('ALTER TABLE parts ADD COLUMN orderDate DATETIME'); } public function sqLiteDown(Schema $schema): void { $error; // TODO: implement backwards migration for SQlite } }