Key-value databases are designed for high performance and scalability, and are often used in situations where the data does not require complex relationships or joins. They are well suited for storing data that can be easily partitioned, such as caching data or session data. Key-value databases are simple and easy to use, but they may not be as suitable for complex queries or data relationships as other types of databases such as document or relational databases.
https://databasetown.com/key-value-database-use-cases/
YES NO YES.
No, key/value data stores are not highly optimized for complex queries that contain multiple joins. Key/value data stores are designed for simplicity and efficiency in storing and retrieving data based on a key, typically with a focus on high-speed read and write operations for simple data access patterns.
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