Book Image

Tableau Certified Data Analyst Certification Guide

By : Mr. Harry Cooney, Mr. Daisy Jones
Book Image

Tableau Certified Data Analyst Certification Guide

By: Mr. Harry Cooney, Mr. Daisy Jones

Overview of this book

The Tableau Certified Data Analyst certification validates the essential skills needed to explore, analyze, and present data, propelling your career in data analytics. Whether you're a seasoned Tableau user or just starting out, this comprehensive resource is your roadmap to mastering Tableau and achieving certification success. The book begins by exploring the fundamentals of data analysis, from connecting to various data sources to transforming and cleaning data for meaningful insights. With practical exercises and realistic mock exams, you'll gain hands-on experience that reinforces your understanding of Tableau concepts and prepares you for the challenges of the certification exam. As you progress, expert guidance and clear explanations make it easy to navigate complex topics as each chapter builds upon the last, providing a seamless learning experience—from creating impactful visualizations to managing content on Tableau Cloud. Written by a team of experts, this Tableau book not only helps you pass the certification exam but also equips you with the skills and confidence needed to excel in your career. It is an indispensable resource for unlocking the full potential of Tableau.
Table of Contents (11 chapters)

Boolean Calculated Fields

Tableau’s calculated fields can be configured to give a true or false result using a variety of boolean functions, such as is a given value a date?, is a given value a null?, and so on. The boolean-type logic can also be expanded into longer-form statements with multiple conditions and more possible outputs than true or false. These logical statements can take the form of either IF or CASE statements.

Boolean or logical calculated field functions could be used in the orders example data source from the introduction to implement logic that flags orders over a specific total sales value. The ISNULL function could also be used to filter out any null orders that have entered the data source by accident.

Boolean Functions

There are a variety of Boolean functions available in Tableau’s calculated fields that return TRUE or FALSE based on the results of a specific test.

The ISNULL function returns TRUE if the value input is null and FALSE...