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Definition · data modeling

Fact table

Fact table is the central table in a dimensional model that stores measurable quantitative events, such as transactions, along with foreign keys to dimensions. For fact table, a useful definition states the central table in a dimensional model that stores measurable quantitative events, such as transactions, along with foreign keys to dimensions, who owns it, and which decision it supports.

Also known as fact tables

Written by Pluvo TeamReviewed by Pluvo Team
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Why it matters

Understanding fact table matters because leaders need a shared, source-backed meaning before they can compare results, explain performance, or decide what to do next. When the term is tied to a source system, owner, and review cadence, it becomes easier to audit assumptions, catch changes early, and keep operators aligned.

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In practice

  • Operating example

    Fact table is useful when teams need a shared interpretation of the central table in a dimensional model that stores measurable quantitative events, such as transactions, along with foreign keys to dimensions. The definition should make source data, timing, ownership, and the decision it supports explicit.

  • Review example

    Fact table should be reviewed whenever the source system, calculation logic, time period, or decision owner changes. That keeps the definition useful instead of letting it drift into a label.

In practice, teams should define fact table with a clear source, owner, time period, and decision before they use it in reporting, planning, or operating reviews.

Understanding fact table matters because leaders need a shared, source-backed meaning before they can compare results, explain performance, or decide what to do next. When the term is tied to a source system, owner, and review cadence, it becomes easier to audit assumptions, catch changes early, and keep operators aligned.

A strong workflow for fact table separates the definition from the action: first agree what the term means, then decide how it is measured, when it changes, and who is accountable for the next step.

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FAQ

What is a fact table?

Fact table is the central table in a dimensional model that stores measurable quantitative events, such as transactions, along with foreign keys to dimensions. For fact table, a useful definition states the central table in a dimensional model that stores measurable quantitative events, such as transactions, along with foreign keys to dimensions, who owns it, and which decision it supports.

What is the difference between a fact table and a dimension table?

The boundary for fact table differs from related terms by scope, source data, time period, and decision use. In this glossary, it covers the central table in a dimensional model that stores measurable quantitative events, such as transactions, along with foreign keys to dimensions, so teams should compare those boundaries before using it in reporting or planning.

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Sources

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