A data source is a database
table or a set of tables.
When you attach a data
source to a drawing, the data source is listed on the Map
Explorer tab of the Task Pane.
You can view and edit data in the data source or link records from
the data source to objects in the drawing.
While keeping the data
source attached, you can disconnect the data source to save resources
and reconnect when you are ready to work with the data.
can work with an external database table without using the database application