Chapter 2, Problem 2.7RQ

Explanation of Solution

File:

A group of interrelated data is called file, and it can be stored in the secondary memory.

• A file can be accessed from the secondary memory by using its name.
• The types of files can be separated based on the format.
• The format of the file can be identified by their extensions.

Record:

• Relational database is a database, which organizes data according to the relational model as table and table consists of rows and columns.
  • The table is also called data file.
  • Group of related row is called record which is also called database object or entity.

Field:

• Relational database is a database, which organizes data according to the relational model as table and table consists of rows and columns...