Introduction to Access Paths › Recognizing the Basic Properties of Access Paths › Physical (PHY) Access Path

Physical (PHY) Access Path

A PHY access path is a single-format file containing the fields derived from the resolution of all the relations on a file. This access path type:

• Is unkeyed
• Has no virtual fields
• Is created automatically by CA 2E for every defined REF or CPT file
• Is not referenced directly by functions
• Allows no additional PHY access path to be created for a given CA 2E file
• Is created in a model if an existing physical file is retrieved into the model through assimilation

For more information about:

• Assimilation, see the "Assimilation" chapter Defining a Data Model.
• Editing physical file format entries for assimilated files, see the topic Modifying Access Paths.