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To access an existing data source from Visual Query Builder in future MATLAB software sessions:
In Visual Query Builder, select Query > Define JDBC data source.
In the Define JDBC data sources dialog box, click Use Existing File.
In the Specify Existing JDBC data source MAT-file dialog box, select the MAT-file that contains the data sources you want to use and click Open.
The data sources in the selected MAT-file appear in the Define JDBC data sources dialog box.
Click OK to close the Define JDBC data sources dialog box. The data sources now appear in the Visual Query Builder Data source list.
![]() | Setting up JDBC Data Sources | Modifying Existing JDBC Data Sources | ![]() |

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