When should data be set to disk for safekeeping during the ETL?简述ETL过程中哪个步骤应该出于安全的考虑将数据写到磁盘上?
When should data be set to disk for safekeeping during the ETL?
简述ETL过程中哪个步骤应该出于安全的考虑将数据写到磁盘上?
相关考题:
Name the three fundamental fact grains and describe an ETL approach for each.简述三种基本事实表,并说明ETL的过程中如何处理它们。
Outline some challenges faced by real-time ETL and describe how to overcome them.简述实时ETL的一些难点及其解决办法。
数据仓库的数据ETL过程中,ETL分别是哪几个过程?A.数据抽取B.数据稽核C.数据转换D.数据装载