Why do we use a calendar function?
1Times asked
Jul 2026Last seen
Jul 2026First seen
💡 Model Answer
A calendar function, often implemented as a date dimension or calendar table, provides a structured set of dates that can be joined to fact tables. It enables time‑based analysis such as year‑over‑year comparisons, quarter calculations, and fiscal period mapping. By centralizing date logic, it ensures consistency across queries, simplifies maintenance, and improves performance because the date logic is computed once rather than repeatedly in each query.
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