Forum Discussion
Merge Error
I am trying to merge a two data sets have 75000 (approx) & 45000 rows, however, i get over a million rows in merged query , How it is happening, i am preplexed. i used full row merge
Please refer this article: https://docs.microsoft.com/en-us/power-bi/connect-data/desktop-shape-and-combine-data
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5 Replies
Anonymous
When you merge use the right key combination and expand only the required columns. Without those right column keys, you may get a cross join effect.
Also, filter out the unnecessary rows before the merge.________________________
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Please refer this article: https://docs.microsoft.com/en-us/power-bi/connect-data/desktop-shape-and-combine-data
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Hi Anonymous
Can you share a screenshot of the Merge dialog box (like this) showing how you are doing the merge
Phil
If I answered your question please mark my post as the solution.
If my answer helped solve your problem, give it a kudos by clicking on the Thumbs Up.Hi Anonymous
You may not choose the appropriate column and merge method when performing Merge Queries, resulting in a Cartesian product, causing each combination to be executed again
When doing Merge Queries, you select the appropriate fields of the two tables and the appropriate connection method
If my answer is not what you need, can you share sample data and sample output in table format? Or a sample pbix after removing sensitive data.
Best Regards,
Liu Yang
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