Pro dax and data modeling in power bi: creating the perfect semantic layer to drive...
Описание
Develop powerful data models that bind data from disparate sources into a
coherent whole. Then extend your data models using DAX–the query language that
underpins Power BI–to create reusable measures to deliver finely-crafted
custom calculations in your dashboards.
This book starts off teaching you how to define and enhance the core
structures of your data model to make it a true semantic layer that transforms
complex data into familiar business terms. You’ll learn how to create
calculated columns to solve basic analytical challenges. Then you’ll move up
to mastering DAX measures to finely slice and dice your data.
The book also shows how to handle temporal analysis in Power BI using a Date
dimension. You will see how DAX Time Intelligence functions can simplify your
analysis of data over time. Finally, the book shows how to extend DAX to
filter and calculate datasets and develop DAX table functions and variables to
handle complex queries.
What You Will Learn
Create clear and efficient data models that support in-depth analytics
Define core attributes such as data types and standardized formatting
consistently throughout a data model
Define cross-filtering settings to enhance the data model
Make use of DAX to create calculated columns and custom tables
Extend your data model with custom calculations and reusable measures using
DAX
Perform time-based analysis using a Date dimension and Time Intelligence
functions
Who This Book Is For
Everyone from the CEO to the Business Intelligence developer and from BI and
Data architects and analysts to power users and IT managers can use this book
to outshine the competition and create the data framework that they need and
interactive dashboards using Power BI
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