Financial analysts at Relias often need to summarize large operational datasets into a format that makes trends easy to compare across time, region, or product line. Pivot tables are a common way to turn detailed rows into a compact reporting view.
Explain how you would use pivot tables to analyze a large dataset from a Relias financial reporting workflow. In your answer, cover:
Keep the answer practical and analyst-focused. The interviewer is looking for a clear explanation of how pivot-style analysis helps summarize large datasets, how to structure the dimensions and measures, and how SQL aggregations can replicate or extend a pivot table in PostgreSQL.