To create a data link:
In the Data Model view, single-click in the tool palette.
A link is always drawn from the parent group to the child query.
Create the link:
Create a Group to Group Link: To create a link between one query's
group and another query's group, which is useful when you want the child
query to know about the parent's data, click the parent group (avoiding
the columns in the group) and drag a link to the child group.
Create a Column to Column Link: To create a link between columns,
click a column of the parent query and drag a link to a column of the child
query.
Double-click the new link object to display the Property Inspector, and set the desired properties.
Copyright © 1984, 2005, Oracle. All rights reserved.