Power BI Masterclass - Let Us Talk About Performance - Best Practices

This video tutorial focuses on performance optimization and best practices in Power BI. It emphasizes the use of templates to enhance report performance and reduce visual clutter. The tutorial explains the importance of marking date tables to prevent DAX calculation errors and highlights the need to disable the auto date time feature to avoid bloating data models. A practical example using the Wide World Importers dataset illustrates these concepts, showing a significant reduction in file size by disabling auto date time. The video concludes with a summary of best practices for efficient Power BI report creation.

Why is it beneficial to use templates in Power BI reports?

• They increase the number of visuals.

• They reduce the need for repeated design efforts.

• They complicate the report creation process.

• They are only available for purchase.

What is the primary reason for marking a date table in Power BI?

• To enhance the visual appeal of reports.

• To ensure tax calculations are accurate.

• To make the report creation process slower.

• To increase the file size.

What is a potential consequence of not marking a date table in Power BI?

• The report will load faster.

• The tax calculations might break.

• The visuals will become more complex.

• The file size will decrease.

What issue can arise if the auto date time feature is enabled in large data models?

• It significantly increases the file size.

• It reduces the number of data dimensions.

• It improves the performance of the model.

• It simplifies the data model.

What is the first step in report creation according to best practices?

• Importing all data and joining tables.

• Marking the date table at the end.

• Enabling the auto date time feature.

• Creating as many visuals as possible.

How can you prevent the auto date time feature from increasing file size?

• By enabling more data dimensions.

• By using more visuals in the report.

• By marking all tables as date tables.

• By disabling the auto date time feature.

What is the recommended practice regarding the auto date time feature for small models?

• Enable it to reduce the number of visuals.

• Disable it to increase file size.

• Enable it if there is only one date dimension.

• Always disable it.