We can create the reports in visualization.With the help of visualization we can easily analysis the data. The performance of the Tableau is ten time faster than any other BI tool. We can create repots or workbooks even in offline(when server is down).With the help of TDE (tableau data engine ) is a powerful free space database. When The server is down TDE creates snapshot from data source and make local copy into the Repository(Data source). Tableau public is used to share the data within the organization. Tableau desktop can connect to different data sources like text files, excel sheets,oracle or even onlne data like sales force ,google analytics ,gmail.
Tableau has been developed and designed with the end user in mind. In other words you dont have to be an IT specialist to work with data. Like most software, Tableau Public can be of most benefit once youve grasped the core principles. Applying sound principles enables better and faster analysis and ultimately leads you to create a better visualisation. One core principle relates to the format of your dataset.
The first step towards exploring your data with Tableau is taken by looking at how the data is shaped. If an Excel file is already formatted as a cross tabulation, is aggregated, or contains comments and notes, the ability to visualise, aggregate or group would be limited. There are some fundamental concepts about data in Excel which should be understood to best use Tableau. Formatting of data is one of the most important.
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