Please note : This help page is not for the latest version of Enterprise Architect. The latest help can be found here.

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Connect to an Oracle Data Repository (OLE DB)

To access a project in your Oracle 9i, 10g, 11g or 12c data repository, you connect to the data repository from Enterprise Architect.


  • The Oracle repository and the project already exist
  • You have SELECT, UPDATE, INSERT and DELETE access permissions



: Open Project

Keyboard Shortcuts


Connect to an Oracle Repository using OLE DB




In the 'Open Project' dialog, select the 'Connect to Server' checkbox.


Click on the button.

The 'Data Link Properties' dialog displays.


Select 'Oracle Provider for OLE DB' from the list.

Do not select 'Microsoft OLE DB Provider for Oracle'; Enterprise Architect might not work as expected.


Click on the Next>> button.

The 'Connection' tab displays.


In the 'Data source' field, click on the drop-down arrow and select the data source name (the service name of the Oracle database).


Type in the User name and Password.


Click on the Test Connection button to confirm that the details are correct.


If the test does not succeed, revise your settings.

If the test succeeds, click on the OK button; the 'Connection Name and Type' dialog displays.


Give the connection a suitable name so that you can recognize it in the 'Recent Projects' panel on the 'Open Project' dialog.


If you want to encrypt and hide the connection details of the database from the users that the connection string is given to, select the 'Encrypt Connection String' checkbox.


If required, select the 'Lazy Load' checkbox to not load the full project view when the model is loaded; instead, only the parts that are necessary to display the visible portion of the tree are loaded.

With this setting, the model loads faster and users can begin work sooner, but at the expense of later small delays as Enterprise Architect loads specific portions of the model.


To improve performance over a Wide Area Network, remote database calls can be routed through a WAN Optimizer that compresses the data returned from the repository, reducing transfer time. If you are using a WAN, and want to apply this facility, select the 'Use WAN Optimization' checkbox; otherwise go to step 15.

If you select this checkbox, complete the next two fields (see your administrator for the correct values).


In the 'Server' field, type the network name or address of the optimizer server.


In the 'Port' field, type the port on which the server is running on the remote machine.


Click on the OK button to complete the configuration and open the project.

This also adds the project name to the 'Recent' list on the Start Page; from now on, you can open the project again just by clicking on this name.


  • This feature is available in the Corporate, Business and Software Engineering, System Engineering and Ultimate editions

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