Two ASI reports show different values for what appears to be the same metric. Describe how you would investigate the discrepancy using SQL and data manipulation techniques, including how you would validate metric definitions, compare filters, inspect join grain, detect duplicate inflation, and isolate the step where the numbers diverge.
Reconciling conflicting report logicValidating joins and aggregation grainUsing CTEs for side-by-side comparisonsUsing window functions to detect duplicate or stale recordsCommunicating root cause clearlyYou should answer at a senior analyst level. The interviewer is looking for a structured debugging workflow, not just a generic statement like “check the query.” Reference specific SQL patterns you would use and explain why each check helps narrow the issue.