ETL (Extract, transform, load) Question:

Download Job Interview Questions and Answers PDF

Explain What is Full load & Incremental or Refresh load?

Extract, transform, load (ETL) Interview Question
Extract, transform, load (ETL) Interview Question

Answer:

Full Load: completely erasing the contents of one or more tables and reloading with fresh data.

Incremental Load: applying ongoing changes to one or more tables based on a predefined schedule.

first time what we are loading the data is called initial load or full load.
secondtime or modified data waht ewe are loading is called as incremental load or delta load.

Download Extract, transform, load (ETL) Interview Questions And Answers PDF

Previous QuestionNext Question
Explain What is a staging area? Do we need it? What is the purpose of a staging area?Explain a mapping, session, worklet, workflow, mapplet?