Dual Storage Mode

Lesson in the Power BI Roadmap · Stage 3: Connection Modes

Last updated 14 September 2026

What is Dual Storage Mode?

Dual storage mode lets a table be configured to use both Import and DirectQuery, switching between them depending on the type of query Power BI needs to run. It is commonly used for large fact tables where recent data stays in DirectQuery for freshness while historical data is imported for speed. This setup requires careful design of aggregation tables to work well.

Study this in the interactive course See the whole Power BI roadmap

Free resources to learn Dual Storage Mode

Official docsTable storage mode in Power BI semantic models
ArticleWhat is Dual Storage Mode in Power BI?
VideoBoost DAX Performance in Power BI with Dual Mode

Dual Storage Mode: common questions

Can I learn Dual Storage Mode 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 Dual Storage Mode 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 Dual Storage Mode tutorial for beginners?

It is lesson 17 of 131 in the free Power BI roadmap, in stage 3, Connection Modes. 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.