Fuzzy Matching In Power BI

Reza Rad looks at a preview feature in Power BI to perform fuzzy matching:

Fuzzy Merge is a way of joining two tables together, but not on exact matching criteria, but on the similarity threshold. If you want to learn what is the Merge operation itself and the difference of that with Append, read my blog post here. If you want to learn more details about what is Merge and the different types of join or merge, read my other blog post here. Merge or Join is simply the act of combining two tables with different structures, but with link/join columns, to access columns from one of the tables in the other one.

To use Merge operation on the “source” query, You can click on the Merge Queries as New option in the Home tab of Power Query Editor window.

This kind of functionality was in SQL Server Integration Services as well but suffered from a huge scaling problem, where the component worked pretty well with small numbers of records, but once you got into the 100K+ range, everything started to fall apart.  I’d be interested to see where that limit is in Power BI.

Related Posts

Power BI Violin Plots

Meagan Longoria shows off a violin plot custom visual in Power BI: A violin plot is a nifty chart that shows both distribution and density of data. It’s essentially a box plot with a density plot on each side. Box plots are a common way to show variation in data, but their limitation is that you can’t […]

Read More

No Type Equivalence In M

Imke Feldmann notes an oddity in types in Power Query: But this function will not return any matches. I also tried out a (potentially) slower version using Table.SelectColumns(Types, each [Value] = x[Types]) – but still no match.  What I found particularly frustrating here was, that in some cases, these lookups or filters on type-columns worked. […]

Read More

Categories

October 2018
MTWTFSS
« Sep Nov »
1234567
891011121314
15161718192021
22232425262728
293031