Learning Microsoft Power BI - Merging Tables with Power Query

The video tutorial explains the concept of merging tables in Power BI, highlighting the importance of optimizing data models by using a star schema instead of a snowflake schema. It demonstrates how to merge product, subcategory, and category tables into a single master table using Power Query, reducing data redundancy and improving performance. The tutorial provides a step-by-step guide on how to perform these merges and discusses the benefits of maintaining a star schema design for Power BI data models.

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