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

        $configValue = $queryBuilder->execute()->fetchColumn();

        if (!$configValue) {
            return null;
        }

        return $configValue;
    }
public function get($name)
    {
        $queryBuilder = $this->connection->createQueryBuilder();
        $queryBuilder->from($this->table, 'config');
        $queryBuilder->select([
            'config.value',
        ]);
        $queryBuilder->andWhere('config.name = :name');
        $queryBuilder->setParameter(':name', $name);

        $configValue = $queryBuilder->execute()->fetchColumn();

        if (!$configValue) {
            return null;
        }

        return $configValue;
    }
{@inheritdoc}