Spreadsheet Recalculation Inside a Database: Derived Values That Track Their Own Dependencies

Mon, 05 Oct 2026 00:00:00 +0000

A line item’s quantity goes from 4 to 5. The order subtotal should change, and so should the tax, the order total, the customer’s lifetime value and the regional revenue figure on a dashboard. Which of those actually update depends on which code path made the edit, because each one gets recomputed somewhere different: the checkout handler, the invoice renderer, a nightly job, a SQL view somebody wrote for finance. Every copy of the formula is another chance for two screens to disagree.

Reactive Programming on App Coding

Spreadsheet Recalculation Inside a Database: Derived Values That Track Their Own Dependencies