Book Image

Tableau Desktop Specialist Certification

By : Adam Mico
Book Image

Tableau Desktop Specialist Certification

By: Adam Mico

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.
Table of Contents (17 chapters)
Part 1: Introduction to Tableau
Part 2: Mastering the Exam
Part 3: The Final Prep

Understanding the basics of parameters

Parameters and using them are considered an intermediate to advanced Tableau function. Parameters are workbook variables that require a calculation, a filter, or a reference line to have value at the worksheet or dashboard level. Parameters can be boosted further with nearly unlimited use cases when actions are utilized.

The data types that can be used for a parameter are floats (numbers with a decimal point), integers (whole numbers), strings, Booleans (true/false), dates, and date and time values.

Parameters can be fixed based on user input values or be dynamic based on fields coming in from a data source. For example, a common parameter that is dynamic is Date, where you can modify the dates available based on a date field in your data source – when that data updates, so do the available options.

Parameters can be shown on dashboards and worksheets, but can only be used if they are incorporated with a worksheet. When appearing...