Remove duplicates (Power Query)

Important   This article applies to Power Query, a data analysis feature available for Excel that lets you discover, combine and refine data. You may need to enable Power Query in Excel. You can also download and install the most recent version of Power Query for Excel, which automatically enables it. Power Query technology is also built into the Power BI Designer, which is a stand-alone report authoring and data transformation tool for Power BI.

Removes all rows from a Power Query table, in the Query Editor, where the values in the selected columns duplicate earlier values.

For example, a table has four columns.

Remove Duplicates 1

Select Column1 and Column4 then select Remove Duplicates. The third row is removed because the values in Column1 and Column4 are the same in both instances.

Remove Duplicates 2

To remove duplicates

  • In the Query Editor preview grid, select columns.

Using the Query Editor ribbon

  • In the Query Editor ribbon, click Remove Duplicates.

Using the Query Editor context menu

  • In the Query Editor ribbon, click Remove Duplicates. You can also right click and click Remove Duplicates.

Note   The Query Editor only appears when you load, edit, or create a new query using Power Query. The following video shows the Query Editor window appearing after editing a query from an Excel workbook. To view the Query Editor without loading or editing an existing workbook query, from the Get External Data section in the Power Query ribbon tab, select From Other Sources > Blank Query. The following video shows one way to display the Query Editor.

How to see Query Editor in Excel

Applies To: Excel 2013, Excel 2010

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