Free practice · multiple-choice · medium

Practice

Choose structure validation checks

Which checks support the claim that an extract is one row per order?

Order extract · structure card

One row per order, with every field assigned a role

Observation
One completed or open order
Candidate key
order_id · complete and unique
Measure
revenue · quantitative · USD
Dimensions
order_date, region, refunded

The row grain and candidate key must be verified before revenue is summarized or tables are joined.

Choose all that apply