Explanation:
To ensure that only high-quality, valid data is promoted to the Silver layer, Delta Lake provides Constraints. Specifically, NOT NULL and CHECK constraints allow data engineers to define rules that the data must satisfy before being successfully written to the table. If a record violates these rules, the write operation will fail, thereby preventing data corruption in the downstream layers.
Ultimate access to all questions.
Which Delta Lake feature is best suited for enforcing data integrity and quality standards during the transformation process from a Bronze table to a Silver table?
A
Shallow clones
B
Time travel
C
Change Data Feed (CDF)
D
Delta Lake Constraints (e.g., CHECK, NOT NULL)
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