Data changes flow in one direction, from the online processing server to the staging and reporting servers. 數據更改沿從在線處理伺服器到臨時伺服器和報告伺服器一個方向流動。
The data required at the batch processing server might be a subset of the data available at the online processing server. 批處理伺服器所需的數據可能是聯機處理伺服器上可用數據的子集。
It typically means inserting a timestamp column in each database table used concurrently by both batch and on-line processing. 它通常意味著，在每個被批量和聯機處理併發訪問的資料庫表中，增加一個時間戳列。
