public function rollBack() : bool
    {
        if ($this->isConnected() === false) {
            $this->connect();
        }
        if ($this->transactionLevel > 0) {
            --$this->transactionLevel;
            if ($this->transactionLevel == 0) {
                return $this->providerDatabase->rollBack($this->GetMasterLink());
            }

            return $this->providerDatabase->rollBackSavePoint($this->GetMasterLink(), 'LEVEL' . $this->transactionLevel);
        }

        return false;
    }