What Does Declarative Programming Mean?
Declarative programming is a programming paradigm in which the programmer defines what needs to be accomplished by the program without defining how it needs to be implemented. In other words, the approach focuses on what needs to be achieved instead of instructing how to achieve it. It is different from an imperative program which has the command set to resolve a certain set of problems by describing the steps required to find the solution. Declarative programming describes a particular class of problems with language implementation taking care of finding the solution. The declarative programming approach helps in simplifying the programming behind some parallel processing applications.
Techopedia Explains Declarative Programming
Order of expression or statements or the replication of a statement would not have any impact in declarative programming. Declarative programming can be further categorized into constraint programming, logic programming and constraint logic programming. Prolog, SQL and embedded SQL are some of the well-known examples of declarative programming languages. Tools are provided to programmers in declarative programming to allow abstraction of the implementation and to help in the concentration of the issue.
