Aggregations
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What is Aggregations?
Aggregations in Power BI store pre-summarized versions of a large, detailed table, allowing queries at high summary levels to hit the smaller aggregated table instead of the full detail. This speeds up report performance significantly for very large DirectQuery or Import datasets. Power BI can automatically detect when a query can use an aggregation table instead of the base table.
Free resources to learn Aggregations
More in stage 8: Model Objects
Aggregations: common questions
Can I learn Aggregations in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Aggregations in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Aggregations tutorial for beginners?
It is lesson 45 of 131 in the free Power BI roadmap, in stage 8, Model Objects. If you are new to Power BI, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.