SQL ANALYSIS CHECKLIST
Educational starter resource from the Adekunle Okunade portfolio preview.

1. What does one row represent in each source table?
2. Are join keys unique where expected?
3. Does a join multiply records unexpectedly?
4. Have nulls been handled deliberately?
5. Are date filters inclusive and appropriate for the reporting period?
6. Are currency and unit definitions consistent?
7. Do totals reconcile with an independent check?
8. Is the aggregation level correct for the business question?
9. Have exclusions and assumptions been documented?
10. Can another analyst reproduce the result?