USER_KEY

Business Definition

Surrogate foreign key to USER_DIM identifying the student who attempted this item. Derived from the actor_id (assignee_id for grade events) matched against user_uuid. A value of -1 indicates the user could not be resolved, typically for anonymous or unlinked sessions.

Data Type

NUMBER(38,0)

Nullable

No

Last Updated

2026-01-20T04:47:38 by ASSESSMENT_ITEM_FACT_ANALYSIS