EXTRA CLASS PRACTICE / Boreal Board Game Café

Board Game Café: rescue the launch report

Six short report-audit challenges: repair CASE rules, preserve real activity, and explain what the evidence supports. Use questions 1–3 as a 10–15 minute warm-up; all six take about 25–35 minutes.

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Worksheet version 2026-09-09 · Boreal Board Game Café · Original practice companion; follow Canvas for assigned lab numbering, grades, and deadlines.

Come ready to investigate

Read the lecture, explore a small sample, and bring a question. This preparation does not replace a graded Canvas pre-lab check.

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1. Name the row before writing the query

In the six-table schema, identify the three activity tables. What does one row mean in each? Which activity can belong to an anonymous walk-in?

2. Predict the silent mistakes

Before running SQL, explain how a query can run successfully but assign the wrong label or lose a real repeated action. Give one boundary or duplicate case you would test.