In this blog, we will see how to merge two tables in Power Query based on key column and a date range.
https://exceed.hr/blog/merging-with-date-range-using-power-query/
In the last two posts in this series I showed how removing columns from the tables used in a Power Query merge operation can improve refresh performance. In this post I’ll show you a different trick that – when you can use it – can give you an equally significant performance boost.
In this tutorial, we’ll examine an interesting question that was raised on the Enterprise DNA Forum about how to dynamically merge a changing number of columns in a Power Query table. You can watch the full video of this tutorial at the bottom of this blog.
https://blog.enterprisedna.co/power-query-table-how-to-dynamically-merge-columns/