Introduction to Access Paths › Recognizing the Basic Properties of Access Paths › Update (UPD) Access Path

Update (UPD) Access Path

A UPD access path specifies a uniquely keyed, single-format access path that describes a view to the function for updating the file. This access path type:

• Is always keyed on the fields that identify the file. These entries arise from the resolution of the key relations.
• Has no virtual fields
• Is created automatically by CA 2E for every defined REF or CPT file

You can create additional UPD access paths, with the same keys as specified on the file, but which have a subset of the fields defined by the relations. Additional UPD access paths are seldom required.