What approach is the safest to generate accurate reports in the store_sales_summary table when adjustments are needed?

Using upsert logic to update results in the store_sales_summary table offers a robust method for ensuring data accuracy and integrity when adjustments are necessary. This approach combines the benefits of both insert and update operations, allowing for modification of existing records while simultaneously accommodating new entries.

By leveraging upsert logic, any changes to the underlying data in the daily_store_sales table can be seamlessly integrated into the store_sales_summary table without the risk of losing any information. This is particularly useful when only certain segments of the summary need to be adjusted rather than having to completely overwrite or drop the entire summary table. Furthermore, this method minimizes downtime and maintains the consistency of the reporting data, which is crucial in a retail context where up-to-date information is often required for timely decision-making.

Overall, using upsert logic provides a structured and secure means of managing data in the store_sales_summary table, ensuring accurate reporting while allowing for necessary adjustments when the source data changes.