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Numeric precision for monetary values

Tech concernsShared across all subject areas

Numeric precision for monetary values

How money is represented in storage and in computation.

Stack choices4

Pilot
Modern production
Circa 2015
Enterprise .NET

Tech constraints1

Matching Engine Execution

Facts

AreaDatabase & data modelling

DescriptionHow money is represented in storage and in computation.

ReversibilityFoundational

Needed for pilotYes

NotesEasy to overlook and catastrophic to get wrong. Every layer must agree: database column type, ORM mapping, API serialisation, and the client. A float anywhere in the chain reintroduces the error.

Dataset version 2026.09.0. Pages, scope and counts are computed from the schema, not listed anywhere. A personal reference and portfolio project — not a vendor comparison site.