Prep is fully integrated into the Tableau analytical workflow so you can quickly and easily move from data preparation to data exploration.Īt any point in your workflow you can open your the result of your Tableau Prep flow in Tableau, to explore the data straight away. Learn more about Tableau product pricing here. So why should you use Tableau Prep? Well, for one, Tableau Prep is included in the Tableau Creator license and is essentially free. There are many ETL tools out there in the market and the competition is only getting fiercer. Any edits performed on the data in the flow or profile pane are mirrored in the row level data, allowing you to consistently track the format of the data. This is the bottom pane in the view, which illustrates the lowest granularity of the data that is the row level. This is one of the most accommodating pane since it facilitates most of the cleaning operations that you can perform on the data and it visually highlights the relationship between the fields. You can find out the number of unique values contained within each field and how they are distributed. The profile pane is the middle pane in the view and acts as a high-level overview of the data, illustrating each fields’ profile. To learn more about each of the steps please visit the official Tableau documentation. The flow pane allows you to keep track of the sequence of steps. This is the uppermost pane in the view, which acts as a visual guide showing all steps in the ETL process from beginning to end. Let’s consider each of the three views in more detail. You get a complete understanding of what the data looks like and how it’s distributed. At its core, Tableau Prep is built around three different views which allow you to view your data on three different levels of granularity simultaneously. One of the first things that strikes you when working in Tableau Prep is its intuitive, easy-to-navigate and user-friendly interface. Let’s dive into Tableau Prep and take a closer look at some of its features! The Tableau Prep Interface You can now do your data preparation with Tableau’s own ETL solution called Tableau Prep (formerly Project Maestro), allowing a seamless transition between your data preparation and data analysis. With Tableau you often realise than your data is of a greta quality and you end up spending most of your time trying to structure, shape and format data properly before you can explore it. Using this new feature, it is possible to search for multiple files using wildcard filters and Union those data in Tableau Prep.Written by George Koursaros - 29-05-2018 Are You Ready For Tableau Prep? Matched tables would then be displayed in the “Include Tables” window as shown below. “Worksheet Filter” can be added further just to limit only those matches where an excel sheet name will match the keyword, thereby ignoring any other sheets or files. Users can add multiple filters and find the target files. Users can add a custom field or filter to select desired files, such as include subfolders, file name matches (or does not match) a keyword or filetype, file size range, date created, date modified etc. As shown in the screenshot below, click on the “Tables” tab and choose “Union multiple tables” How to Achieve using this New Feature:Īfter opening Tableau Prep, from the default window click “Connect to Data”.Ĭhoose the file type to connect and browse to the appropriate folder and select the target file. With the recent release of Tableau Prep, it is now possible to bring various files from a directory using a wildcard union feature.
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