Uncover the hidden pitfalls of Excel regression and learn why Python is the key to unlocking clean, efficient data analysis.
Microsoft added reusable Skills, new financial data connectors, and traceability features to Copilot in Excel, built specifically for finance teams.
The takeaway: Avoid using IN (col1, col2) in JOIN conditions at scale. Split into separate SELECTs with equality joins, combined with UNION. This was tested on Redshift, but the same pattern is ...