Connector/ConfigService/Storage/DatabaseConfigServiceStorage.php
public function set($name, $value)
    {
        $queryBuilder = $this->connection->createQueryBuilder();
        $queryBuilder->from($this->table, 'config')
            ->select(['config.name'])
            ->where('config.name = :name')
            ->setParameter(':name', $name);
        $configElement = $queryBuilder->execute()->fetchColumn();

        if ($value instanceof DateTimeInterface) {
            $value = $value->format(DATE_W3C);
        }

        if (!empty($configElement)) {
            $this->connection->update(
                $this->table,
                [
                    'value' => $value,
                ],
                [
                    'name' => $name,
                ]
            );
        } else {
            $this->connection->insert($this->table, [
                'name' => $name,
                'value' => $value,
            ]);
        }
    }
public function set($name, $value)
    {
        $queryBuilder = $this->connection->createQueryBuilder();
        $queryBuilder->from($this->table, 'config')
            ->select(['config.name'])
            ->where('config.name = :name')
            ->setParameter(':name', $name);
        $configElement = $queryBuilder->execute()->fetchColumn();

        if ($value instanceof DateTimeInterface) {
            $value = $value->format(DATE_W3C);
        }

        if (!empty($configElement)) {
            $this->connection->update(
                $this->table,
                [
                    'value' => $value,
                ],
                [
                    'name' => $name,
                ]
            );
        } else {
            $this->connection->insert($this->table, [
                'name' => $name,
                'value' => $value,
            ]);
        }
    }
{@inheritdoc}