Data transformation

After importing data there is often a need to rearrange or update them so that we get adequate inputs on the basis of which we can make reports. Previously, to perform that, we used traditional Excel functions, and a few years ago an Excel add-in called PowerQuery was released. It offers the possibility of obtaining data from a variety of sources and the possibility of transforming them. Good News: PowerQuery is integrated in PowerBI!

Query Editor

When you use Power Query to retrieve data often need to be “purified” before they can continue to be used in the reports. For this purpose you can use a tool called Query Editor. It opens in a separate window, just like Data model, with its own ribbon menus that have a multitude of options for data processing. The following text will be talking about some basic options that allow transformation of data.