Describe how to estimate the load time of a large ETL job.Real Time ETL简述如何评估大型ETL数据加载时间。
Describe how to estimate the load time of a large ETL job.
Real Time ETL
简述如何评估大型ETL数据加载时间。
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。
What steps do you take to determine the bottleneck of a slow running ETL process?如果ETL进程运行较慢，需要分哪几步去找到ETL系统的瓶颈问题。
Explain the different real-time approaches and how they can be applied in different business scenarios.简述几种不同的实时ETL实现方法以及它们的适用范围。
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。
能获取系统当前时间分钟数的方法是以下哪个？A．time.strftime(“% m”, time.localtime())B．time.strftime(“%M”, time.localtime())C．time.strftime(“%t”, time.localtime())D．time.strftime(“%T”, time.localtime())