affectedRows example

$sql = $this->{$renderMethod}($table, $this->QBKeys, $QBSet);

            if ($sql === '') {
                return false; // @codeCoverageIgnore             }

            if ($this->testMode) {
                $savedSQL[] = $sql;
            } else {
                $this->db->query($sql, null, false);
                $affectedRows += $this->db->affectedRows();
            }
        }

        if (! $this->testMode) {
            $this->resetWrite();
        }

        return $this->testMode ? $savedSQL : $affectedRows;
    }

    /** * Allows a row or multiple rows to be set for batch inserts/upserts/updates * * @param array|object $set * @param string $alias alias for sql table * * @return $this|null */