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What is LINQ aggregation (Sum, Avg, Min, Max)?

Updated May 16, 2026

Short answer

Aggregation functions compute summary values over sequences.

Deep explanation

LINQ provides Sum, Average, Min, Max for numeric data processing.

Real-world example

Calculating total revenue.

Common mistakes

  • Calling aggregation on empty sequence without defaults.

Follow-up questions

  • What happens on empty collection?
  • Can custom aggregation be done?

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