FILE ORGANIZATION
FILE: File is a collection of data, usually store on disk.
File organization is a way of organizing the data or records in a file.
TYPES OF FILE
ORGANIZATION:
· Sequential: Arrangement of record in sequence by which they were added.
· Relative Organizing of file in order of file using key.
· Indexed: Using a reference number called key that uniquely to a particular record.
FACTORS TO CONSIDER
WHEN CHOOSING A FILE ORGANIZATION METHOD
1. Frequency of update: file that need to be updated daily need to be organized for easy access and retrieval
2. File activity: When we need to perform some activities on large data e.g. sorting of data.
3. File access method: when we need to access a data
4. Master file medium: This is the main file for keeping updates or records from transaction file and other sources.