What you'll learn

Whether it's exported from Excel, pulled from a database, or scraped from a report, data rarely comes in the right format for analysis. Preparing data is the first step in building trustworthy dashboards. In this course, Data Preparation and Cleaning in Tableau Desktop, you’ll gain the ability to connect, clean, and structure data for accurate analysis. First, you’ll explore how to connect to multiple data sources, combine them with joins and unions, and manage relationships between tables. Next, you’ll discover how to clean datasets by renaming fields, fixing data types, and handling missing values. Finally, you’ll learn how to reshape your data through pivots and calculations, and how to save your cleaned data sources for future use. When you’re finished with this course, you’ll have the skills and knowledge of Tableau Desktop needed to prepare data for analysis.