Modifying Access Paths › Modifying Access Path Relations › Understanding Required Relations

Understanding Required Relations

The key level relations for a file (Known by, Owned by, and Qualified by) must be present on all access paths for the file.

A PHY type access path always contains all of the relations for the file on which it is based. On UPD and RTV type access paths, define the entries resulting from the resolution of the relations as the keys of the access path. On other access path types, the relations merely cause the fields to be present on the file, not necessarily as key fields.

For more information about how to define specific required relations, see the next section Adding Relations to a File.