FILE ORGANISATION
FILE ORGANISATION File organisation refers to the way in which data is stored in a file and the methods by which it can be accessed. Database is stored as a collection of files. Each file is a sequence of records. A record is a sequence of fields. Data is usually stored in the form of records. Records usually describe entities and their attributes e.g. an employee record represents an employee entity and each field value in the record specifies some attributes of that employee such as Name, Birth_date, salary etc. Organizing a file depends on what kind of file it happens to be. A file in the simplest form can be a text file i.e. a file which is composed of ASCII (American Standard Code for Information Interchange Text). Files can be created as binary or executable types (containing elements other than plain text). File are keyed with… Read More »FILE ORGANISATION