Using Query Editor versus DAX for transformation
In Power BI, Power Query and DAX (short for Data Analysis Expressions) are both powerful tools for data transformation, but they serve different purposes and are used at different stages of the data preparation process. There’s a simple workflow we can reference when deciding on which tool to use for your transformations. Let’s review them in detail.
Power Query Editor
Power Query Editor in Microsoft Power BI is a powerful data transformation tool designed for cleaning and refining data before analysis. It features an intuitive interface, allowing users to connect to various data sources, import raw data, and perform diverse transformation tasks such as filtering, sorting, and merging. The editor operates step by step, enhancing transparency and facilitating error identification. Noteworthy is its ability to record transformations as reproducible steps, and it supports a formula language called M for advanced scripting...
