Tell us about your experience with Greenplum, DBT, and Data Vault. Why did you switch from a snowflake model to Data Vault?

In my experience working with Greenplum, I used this MPP database for storing and processing large volumes of data, which allowed for efficient scaling of analytical workloads.

I used DBT for transforming data within the warehouse, ensuring modularity, reusability, and versioning of SQL code.

I employed Data Vault as a data modeling methodology that is better suited for flexible and scalable data integration from various sources.

The transition from a snowflake model to Data Vault is driven by the following reasons:

• Data Vault is more adaptable to changes in data sources and business requirements.
• It provides data historization and traceability.
• It simplifies integration and scaling of the warehouse.

Thus, Data Vault helps maintain data quality and manageability in the long term.