What is a Key-Value Store?
A Key-Value Store is a data storage model designed for storing, retrieving, and managing associative arrays – otherwise known as a dictionaries or hash tables. Being far simpler than a relational database (RDBMS) it can be extremely fast and scales well. It also has the advantage of being schema-less but compared to an RDBMS the key-value stores are lacking in functionality and queries such as joins are either very slow or not possible.
Why use a Key-Value Store?
If you want a basic set up it’s as simple as it gets when it comes to data storage.
Did you know?
Key-value stores have been core to Microsoft Windows since 3.1, the operating system stores all its configuration values in a large key-value store called the Windows Registry. Unix-based operating systems, by contrast, store system-wide configuration files in the file system under the /etc directory.
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