Accessing Power Query in Power BI
Power Query is accessible inside the Power BI Desktop tool by connecting to a data source and then clicking Transform Data (rather than Load or Cancel). For existing data models, Power Query can be accessed by right-clicking on the query in the Fields pane and clicking Edit query.
The Power Query window provides a ribbon at the top with tabs for Home, Transform, Add Column, View, Tools, and Help. There is also a Query Settings pane on the right-hand side that shows the name of the query and the steps applied to the data that get built up as you transform the data. The Applied Steps pane makes it easy to undo or redo different transforms and immediately see the impact of those transforms on the data, which is shown in the center of the window. The last part of the user interface is the Queries pane on the left-hand side of the window. This shows all queries that make up the data model and allows you to flip back and forth between them as you&apos...