A Total file definition includes not only descriptions of user data but also descriptions of any one-to-many relationships that exist with other files. This is reflected in the presence of linkpath fields and the designation of files as either master files or variable files.
Linkpath Fields are Defined
To associate a master file with a variable file, linkpath fields are defined. A linkpath field in a master record points to the first and last of a chain of related records in a variable file. A linkpath field in a variable record points to the next and prior variable record in the chain. Total maintains the one-to-many relationship as part of the data in the record.
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