A data sources file stores information about the databases that are to be exposed through Gatsby Database Explorer. To make a database available through Gatsby Database Explorer you first mount it using the Gatsby Design Assistant. Once the database is mounted you can use the Design Assistant to configure various aspects of how a database is exposed to your users.
For databases other than Microsoft Access, information about how your database will be exposed through Gatsby Database Explorer is stored in the data sources file. For Microsoft Access databases this information is stored in the database itself.
To use Gatsby Database Explorer over the Web a user will visit a virtual directory that is mapped to the directory:
<Program Files>\Gatsby\Database Explorer\Web
Gatsby Database Explorer will use the data sources file named "Data Sources.gds" in the parent directory of the Gatsby virtual directory. If it cannot find one there it will use the system data sources file. You can establish which data sources file is the system data sources file by opening that file up in the Design Assistant and selecting the "Edit/Set As Default" menu option.
Gatsby creates a system data sources file in the Gatsby Database Explorer program directory during installation.