Tableau Prep also supports the ROW_NUMBER function for calculated fields. If you choose to include it, it behaves like any other field and can be used in your flow operations and calculated fields. By default, it is excluded from the flow, but you can include it in one click. This field is generated in the Input step when you connect to your data. In previous releases, if you wanted to include these row numbers, you had to manually add them to the source before adding the data set to your flow. This is available for Microsoft Excel or Text (.csv) file types only. Starting in version 2023.1, Tableau Prep automatically generates row numbers based on the original sort order of your data that you can include as a new field in your flow. Note: This option is not currently supported for files included in an input union. Supported in Tableau Prep Builder version 2023.1 and later and on the web for Microsoft Excel and text (.csv) files. For other data sources you can change the data type in a Clean step.įor more information, see Review the data types assigned to your data These include Microsoft Excel, text and PDF files, data from Box, Dropbox, Google Drive, and OneDrive. You can unhide them at any time if you need them.Ĭhange the field data type for data connections that support it.
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