book

Beginning Microsoft Power BI: A Practical Guide to Self-Service Data Analytics

Name: Beginning Microsoft Power BI: A Practical Guide to Self-Service Data Analytics
Author: Dan Clark
ISBN: 9781484256206

by Dan Clark

February 2020

Beginner

417 pages

8h 4m

English

Apress

Content preview from Beginning Microsoft Power BI: A Practical Guide to Self-Service Data Analytics

D. ClarkBeginning Microsoft Power BIhttps://doi.org/10.1007/978-1-4842-5620-6_15

15. Advanced Topics in Power BI Data Modeling

Dan Clark¹

(1)

Camp Hill, PA, USA

This chapter covers some advanced topics in Power BI data modeling that I think you may find useful. These are important for analyzing data over very large data sets. It includes direct queries, aggregation tables, and dataflow.

After completing this chapter, you will be able to

Determine when to use DirectQuery
Use aggregation tables
Use dataflows to populate a Common Data Model

Direct Queries

Throughout this book we have been importing the data into the Power BI tabular model. For most cases this is the preferred method for connecting to data sources and working with the data. ...

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