Chapter 2, Problem 17E

Explanation of Solution

Relational query languages:

• The query language is a language is a language in which user requests information from the database.
• The query languages are higher level when compared to the standard programming languages.
• The Query languages can be categorized to three that are, imperative, functional and declarative.

Imperative query language:

• In the imperative query language, the system needs to perform specific sequence of operations on the database to compute the desired result.
• The imperative paradigm is one that the hardware of the computer is based on.
• With enough software the user can implement Object-Oriented programming, functional Programming, and Logical programming in the imperative paradigm...