Key-value databases operate on the principle of structuring data as pairs of values corresponding to keys. To highlight the benefits of key-value databases, it would help to revisit the significance of hash maps, a common term prevalent in computer science to specify a unique data-structure that provides a constant-time lookup for key pairs.
An intuitive example for a hash table is as follows:
Consider a collection of 500 books and five bookcases. Each bookcase has five shelves. The books can be placed in an arbitrary order, but that would make it incredibly difficult to find a specific book and you may need to go through hundreds of books before locating the one you need. One method of categorizing the books would be ...
