![]() ![]() This option is the default and always uses Hyper to perform the join. This option allows Tableau to choose the fastest option to perform the join - either Hyper or the database you're connected to. In the Cross-Database Join dialog, select one of the following options, then click OK:.To change how Tableau performs the join, next to the Cross-database join option, click Edit.Otherwise, the Site Administrator may have set the Cross-Database Joins configuration option to Tableau only. Note: If you don't see this option, check that you're using only supported data sources and that you have only two data sources (one file and one database type). The Cross-database join option is displayed. In the left pane, under Connections, click the Add button ( in web authoring) to add your second connection to the Tableau data source. Select the file or database that you want to connect to, then double-click or drag a table to the canvas. ![]() This step creates the first connection in the Tableau data source.
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