Explain how you have used SAP or SAP S/4HANA-sourced financial data for reporting with SQL. Focus on how you would produce monthly or period-based finance outputs, how you aggregate data at the correct grain, and how you handle common ERP data issues such as null dimensions, reversals, duplicate postings, and debit/credit sign conventions.
Using `SUM()` and `GROUP BY` for account- or cost-center-level reportingApplying date logic for monthly or fiscal-period reportingCleaning ERP data with SQL before reportingExplaining how report outputs are validated against SAP totalsThis is an easy conceptual SQL & Data Manipulation question. The interviewer is less interested in advanced SQL syntax and more interested in whether you can describe a reliable reporting workflow using ERP finance data.