フリー問題

問題文

An energy utility team's materialized view shows data from 6 hours ago even though the source streaming table is current. What should they check?

選択肢

1. The predictive optimization schedule, since the maintenance operations it performs must complete before the materialized view can pick up the new source data. for the view.
2. The file cleanup retention on the source streaming table, since a short threshold removes the recent files before the view can read them.
3. The materialized view's refresh configuration, since a schedule refreshes only at the configured times and does not follow source updates unless configured to.
4. The disk cache, which is serving a stale copy of the result.