Mix and Match Incrementals ETL

How does incremental ETL work in a mix-and-match manner?

Different ETL feeds can have varying update frequencies and patterns, customized to the needs of the data warehouse.

What are some common update frequencies for ETL feeds?

Updates can occur hourly for critical data, daily for regular updates, or weekly for less volatile data.

How do ETL patterns vary across different feeds?

Some ETL feeds use append patterns, while others use in-place updates or complete replacements, depending on the data’s nature.

What determines the ETL frequency and pattern for a given feed?

The data’s volatility, business requirements, and the importance of keeping information up to date.

At what level can mix-and-match ETL patterns be applied?

They can be applied at the feed level and even at the individual table level within a source system.

Why is flexibility important when designing ETL processes?

It ensures that the data warehouse remains efficient and up to date while optimizing system performance.

What is the key principle when designing an ETL strategy?

Build a system that makes sense for the specific environment and data needs of the organization.