Aggregate

Aggregate and Custom Accumulators

Learn how LINQ's Aggregate() operator implements a general-purpose fold, letting you build custom accumulation logic beyond Sum, Count, and Average.

Aggregate Functions: Sum, Count, Average

Learn how LINQ's Sum, Count, and Average operators collapse sequences into single scalar values, and how execution timing and edge cases affect their use.

Aggregate Report and Graphs

Learn to read JMeter's Aggregate Report percentile columns, understand the limits of GUI graph listeners, and generate CI-friendly HTML dashboard reports from…

Aggregations and Grouping

Master aggregate functions and GROUP BY/HAVING to summarize rows into meaningful totals, averages, and counts in SQL Server.

Aggregate Functions in SQL

Learn how COUNT, SUM, AVG, MIN, and MAX summarize sets of rows into single values, and how each handles NULLs.