問題文
A workbook uses a Tableau extract of a sales table. New sales are added to the source database every night, but the dashboard still shows last week's totals. What is the most likely reason?
選択肢
- The extract has not been refreshed since last week, so it still holds the snapshot from that time.
- Extracts always show the latest source data, so the database must be down; a broken connection is the only way a snapshot could appear to lag behind.
- Data source filters removed the new rows automatically.
- The workbook is using a live connection, which caches results for a week.