What is a 'Slowly Changing Dimension Type 0'?

What is a 'Slowly Changing Dimension Type 0'?

Approach: Explain the fixed nature of Type 0.

A dimension attribute that never changes once it is set. The original value is preserved forever (e.g., an original customer start date).

Follow-up: What is SCD Type 1?

Key concepts: immutable, original value.