To delete a credential mapping for a JDBC data source:
If you have not already done so, in the Change Center of the Administration Console, click Lock & Edit (see Use the Change Center).
In the
Domain Structure tree, expand
Services > JDBC, then select Data
Sources.
On the
Summary of Data Sources page, click the data
source name.
Select the Security: Credential Mapping
tab.
Select the check
box for each credential map that you want to delete.
Click
Delete and confirm the deletion.
To activate these changes, in the Change Center of the Administration Console, click Activate Changes. Not all changes take effect immediately—some require a restart (see Use the Change Center).