Ενότητα 7. Ιεραρχία δεδομένων
The Data Hierarchy, Files and Streams, Creating a Sequential-Access File, Reading Data from a Sequential-Access File, Updating Sequential-Access Files, Random-Access Files, Creating a Random-Access File, Writing Data Randomly to a Random-Access File, Reading Data Sequentially from a Random-Access File, Example: A Transaction-Processing Program, Input/Output of Objects.