What is a common reason for using a staging area in ETL processes?
- To reduce data storage costs
- To restrict access to the data warehouse
- To speed up the reporting process
- To store data temporarily for transformation and cleansing
A staging area in ETL processes is used to temporarily store data before it's transformed and loaded into the data warehouse. It allows for data validation, cleansing, and transformation without impacting the main data warehouse, ensuring data quality before final loading.
Loading...
Related Quiz
- During which phase of the ETL process is data typically cleaned and validated?
- In an in-memory data warehouse, what is the primary method to ensure data durability and prevent data loss?
- In the context of data warehousing, the term _______ refers to a set of standards and technologies that ensure data remains confidential and hasn't been tampered with.
- The design in which dimension tables are normalized, resulting in the formation of a structure that resembles a snowflake is called _______ schema.
- An organization has data scattered across multiple databases and wants to create a unified, reliable repository for business intelligence and reporting. Which solution would be most apt?