When building a report in Power BI, it is recommended to create a calendar table. The calendar helps to better organize data and perform a more in-depth analysis using time-intelligence functions.
In this tutorial, we will learn how to create a calendar table, so a further and more in-depth analysis could be performed.
The easiest way to quickly create a calendar is to use the function CalendarAuto. It will automatically take the first and last dates from your data and produce a calendar. However, using the CalendarAuto function is a bad practice, as in some cases it may lead to mistakes in your data model.
That is why it is better to use the Calendar function: TableName = Calendar ([Start Date], [End Date]).
If you don’t know the start and end dates in your model, one solution is to use functions MIN and MAX inside the Calendar function.