ETL (Extract, transform, load) Interview Question:

Explain What is a staging area? Do we need it? What is the purpose of a staging area?

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Data staging is actually a collection of processes used to prepare source system data for loading a data warehouse. Staging includes the following steps:

Source data extraction, Data transformation (restructuring),

Data transformation (data cleansing, value transformations),

Surrogate key assignments
Submitted by: Administrator