Duplicate Queries [Video]

4m 45s

Duplicate and reference queries are two methods to replicate a query, but with different outcomes and use cases. This lesson does a side-by-side comparison of duplicate and reference queries. We see how to replicate a query with each method, what are the pros and cons of each method, and possible side-effects you may encounter with each of them.

Learning Objectives

  • Learn what duplicate and reference queries are
  • Learn how to implement duplicate and reference query replication
  • Examine different use case scenarios

Intended Audience

  • Students who want to learn about the differences between duplicate and reference Power BI queries
  • Students preparing for the PL-300: Microsoft Power BI Data Analyst exam 


  • Know how to connect to a data source with Power BI
  • Be familiar with Power Query Editor
About the Author
Learning paths

Hallam is a software architect with over 20 years experience across a wide range of industries. He began his software career as a  Delphi/Interbase disciple but changed his allegiance to Microsoft with its deep and broad ecosystem. While Hallam has designed and crafted custom software utilizing web, mobile and desktop technologies, good quality reliable data is the key to a successful solution. The challenge of quickly turning data into useful information for digestion by humans and machines has led Hallam to specialize in database design and process automation. Showing customers how leverage new technology to change and improve their business processes is one of the key drivers keeping Hallam coming back to the keyboard. 

Covered Topics