How To Remove Duplicates Using Power Query

Posted on December 9 2015 by Ken Puls. One of the most common transformations in Power Query is the Remove Duplicates.

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But whenever I expand the merged table all rows get twice the duplicates.

How to remove duplicates using power query. Now the Power Query window appears. How to remove the Duplicates using Power Query in Excel is explained in this video. USING QUERY EDITOR POWER QUERY After loading your TableSelect all the ColumnsGo to Home Tab Remove RowsRemove Duplicates USING DAX CALCULATED TABLE We can create a Calculated Table which removes the Duplicates.

It beautifully explains the reason why changing Sort Order in Power query doesnt work for removing duplicates and using TableBuffer to keep new Sorting Order in memory. This will find duplicates but its a pretty expensive query and it wont work for large lists above 5000 even after enabling pagination. I found this scenario posted by Brian in a Facebook group here url.

If this solves your issues please mark it as the solution so that others can find it easily. Working In Power Query. This transformation is used in many scenarios one of the examples is to create a dimension table with unique IDs in it so can be used as the source of a one to many relationships to fact tables in the relationship diagram of Power BI.

A few days ago I was checking social media to find interesting cases where Power Query could be a good solution. Some time ago I got an email from Alex asking me if there was a way to identify duplicates using Power Query but without removing non-duplicate records in the process. Select a column by clicking the column header.

Click Close Load from the Home tab and this will open up a brand new worksheet in your Excel workbook with the cleaned table. Sharing this as it might be helpful in some other scenarios too. The problem with removing duplicates is that power query keeps the first instance of the record and removes the duplicates.

To remove the duplicate rows go to Home Remove Rows button Remove Duplicates option Step 3. Im trying to merge two queries using one column which contains duplicate values although the exact same amount of duplicates for the same values in both queries as key. To select more than one column press Shift Click or Ctrl Click on each.

You can select more than one column using the CTRL button and remove the duplicates accordingly. Identify Duplicates Using Power Query. Go to Power Query Home tab Remove Rows Remove Duplicates.

This completes our tutorial on How to Remove Duplicates in Power Query. Let us begin and learn to sort data and remove duplicates with power query. Kudos are nice too.

In this article we will learn to sort data and remove duplicates with power query. To remove the duplicate records based on the entire table click on the button present on the top left corner of the data preview. If your data doesnt have a column like this you can select multiple columns and apply this option.

Go to Home Remove Rows Remove Duplicates STEP 4. Select the Data Tab in the Get and Transform section choose the From Table Range option. Right-click and apply the Remove Duplicates command.

Let me know if you have any questions. That should set the loop up correctly. Select the Employee ID value from the Get Items 1 and compare to the the Employee ID value from the Get Items 2.

Save and Close After you get the expected result just click on the save icon to save and Close and Apply button to close the Query Editor. Selected data is loaded into the Power Query Editor of Excel Right-click on the column header of the first column Select Remove Duplicates Note that in this particular case the record name is sufficient to spot the duplicates. This post explores how to do that.

For more information see Create load or edit a query in Excel. You now have your new table with the remove duplicates power query. On the Home Tab Reduce Rows Group select the Remove Duplicates option.

I am not an expert in Power Query and Ive tried several things including different tipes of join. Select the first column in this case Rep. Imagine a scenario where you have a column with text values but within each text string there are duplicates.

To remove duplicates based on one or more columns right-click on the specific column header. To open a query locate one previously loaded from the Power Query Editor select a cell in the data and then select Query Edit. The Power Query editor will automatically open.

All records after the first instance of the record are.

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