OneCopy principle

Concept

The OneCopy principle in Microsoft Fabric means data is stored once in OneLake and read directly by multiple engines such as Spark, SQL and Power BI instead of being duplicated between tools.

Title graphic: OneCopy principle (Concept)

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Articles about OneCopy principle (1)

Demystifying Microsoft Fabric OneLake: The Enterprise Data OS
2026-08-27 · Mirko Peters
Welcome back to the blog! If you have been keeping up with our recent audio content, you know we have been diving deep into the infrastructure shaping modern digita…

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Maintained by Mirko Peters (Microsoft MVP) · Last updated: 2026-11-03