A data engineer is implementing a Type 2 Slowly Changing Dimension for a products table using Delta Lake. After successfully implementing the daily SCD2 MERGE, the engineer notices that the effective_end_date column for expired rows is set correctly, but is_current = true rows occasionally appear multiple times for the same product_id after several days of running. What is the most likely cause?

In the medallion architecture, what is the primary purpose of the silver layer?...

A data engineer needs to implement a Slowly Changing Dimension Type 2 (SCD Type 2) for a customer di...

In the context of the Databricks Lakehouse medallion architecture, which layer is most appropriate f...

A data engineer is designing a Delta table for a high-volume orders fact table that receives approxi...

A bronze-layer design must preserve raw source fidelity and tolerate unexpected schema drift. Which ...