Knowledge Check

Foreign key evidence

While reviewing relational modeling, order items point to deleted orders. Which action fixes it, and which check proves it worked?

What this task practices

Foreign key evidence is a knowledge check interview exercise that trains prompt interpretation, explicit assumptions, a concrete response, and a clear explanation of tradeoffs. The catalog marks it as hard difficulty. It focuses on Relational Modeling, Foreign Key. The signed-in workspace provides the tools for the round and evaluates the attempt against task-specific criteria. Reference solutions, hidden checks, evaluator instructions, and candidate work remain private.