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Hi,
Can anyone help me with an example that what is the difference between append queries and merge queries???
thanks
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Hi @Anonymous ,
Datasets are typically appended when there is no change to the table schema or data model. Appending can use the same schema since the values of one dataset are added after the existing values of another.
If the table schemas are different, the output will contain missing values for the columns not contained in both datasets.
Datasets should be combined by merging when additional attributes need to be added to the table schema or data model.
Merging requires a common attribute to join on, this ensures that the new attributes are correctly matched within the output. There can be missing values within either dataset provided the attribute being merged upon does not contain missing values.
Here is the sample about merge and append result that you can refer: append vs merge.pbix
In addition, you can refer the following articles and video for further details:
Best Regards,
Yingjie Li
If this post helps then please consider Accept it as the solution to help the other members find it more quickly.
Hi @Anonymous ,
Datasets are typically appended when there is no change to the table schema or data model. Appending can use the same schema since the values of one dataset are added after the existing values of another.
If the table schemas are different, the output will contain missing values for the columns not contained in both datasets.
Datasets should be combined by merging when additional attributes need to be added to the table schema or data model.
Merging requires a common attribute to join on, this ensures that the new attributes are correctly matched within the output. There can be missing values within either dataset provided the attribute being merged upon does not contain missing values.
Here is the sample about merge and append result that you can refer: append vs merge.pbix
In addition, you can refer the following articles and video for further details:
Best Regards,
Yingjie Li
If this post helps then please consider Accept it as the solution to help the other members find it more quickly.
HI @Anonymous ,
You can have a look at this blog.
https://radacad.com/append-vs-merge-in-power-bi-and-power-query
Regards,
Harsh Nathani
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@Anonymous
There are two primary ways of combining queries: merging and appending.
Please read the tutorals below.
https://docs.microsoft.com/en-us/power-bi/connect-data/desktop-shape-and-combine-data
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