What is a staging area? Do we need it? What is the purpose of a staging area?
Submitted by: AdministratorData 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
Source data extraction, Data transformation (restructuring),
Data transformation (data cleansing, value transformations),
Surrogate key assignments
Submitted by: Administrator
Read Online Oracle ETL Job Interview Questions And Answers
Top Oracle ETL Questions
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| ☺ | What are snapshots? What are materialized views & where do we use them? What is a materialized view log? |
| ☺ | Compare ETL & Manual development? |
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