#### Overview of this book

The Tableau Desktop Specialist certification is fundamental for any data visualization professional who works in the field with Tableau. This book gets you started by covering the exam format, Tableau basics, and best practices for preparing data for analysis and visualization. It also builds on your knowledge of advanced Tableau topics to get you up to speed with the essential domains and domain objectives. Although the guide provides an outline and starting point to key in on what needs to be understood before the examination, it also delivers in context to give you a strong understanding of each piece before taking the exam. Instructions on how to get hands on with examples, a common data source, and suggested elements are also included. Understanding the concepts will not only assist you in passing the examination, but will also help you work effectively with the tool in your workspace. By the end of this book, you'll be able to efficiently prepare for the certification exam with the help of mock tests, detailed explanations, and expert advice from the author.
Preface
Part 1: Introduction to Tableau
Free Chapter
Chapter 1: Tableau Desktop Specialist Certification Overview
Chapter 2: Data Ingestion
Chapter 3: How to Interpret Data in a Tableau Visualization
Chapter 4: Working with Dimensions, Measures, and Marks (Oh My)
Chapter 5: Calculations and Functions Syntax
Part 2: Mastering the Exam
Chapter 6: Connecting to and Preparing Data
Chapter 7: Understanding and Creating Fundamental Charts in Tableau
Chapter 8: Data Organization and Worksheet Analytics
Chapter 9: Sharing Insights
Part 3: The Final Prep
Chapter 10: Exam Preparation
Chapter 11: Mock Test
Index
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# Calculations and Functions Syntax

Understanding and working with calculations is required of every Tableau developer. Functions and calculations amplify the magnitude of the data’s power. This exam does not require you to be an expert in calculations and functions, but you are required to understand enough to interpret basic calculations from knowledge-based questions. You are likely to know enough to troubleshoot why a calculation does not work. The questions are tricky, so understanding the functions and calculations process will be an essential part of covering Domain 2, which is 35% of the exam’s score. This chapter will provide a deeper look at the skills and opportunities for developers to push past the very basics and open up a new world of insights and discovery.

In this chapter, we will cover the following topics:

• Tableau functions
• Creating basic calculations in Tableau
• Introduction to Level of Detail (LOD) expressions and parameters
• Order...