Comment by Duke Ganote on Foreign Keys in a Data Mart

Lewis–

In my opinion:

1) every datamart should have FK, at least in RELY DISABLE NOVALIDATE state for documentation and optimization purposes.

2) As for validation… well, I’ve been experiencing a half-revolution in my thinking on this (a full revolution would be 360 degree and you’d just end up where you started).

In my prior experiences, I designed the marts and the ETL. So I knew it was done right (IMHO :), and I relied on ETL validations in this 3-step fashion:

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