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Is redis a relational database?

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Apr 19, 2024 pm 06:54 PM

rediskey value pair

No, Redis is not a relational database. It uses key-value storage, in-memory data structures, and a high-performance design to support caching and messaging, but lacks the tabular structure, relational model, transaction processing, and SQL query language of a relational database.

Is redis a relational database?

#No, Redis is not a relational database.

Relational Database

Tabular Structure: Data is stored in a row-column structure called a table.
Relational model: Use foreign keys and primary keys to establish relationships between tables.
Transaction processing: Supports atomicity, consistency, isolation, and durability (ACID).
Query language: Use SQL to query data.

Redis

Key-value storage: Data is stored as key-value pairs, where the key uniquely identifies the data.
Memory data structures: Use data structures such as hashes, lists, sets, and ordered sets to store data.
High performance: Based on memory, it provides extremely high reading and writing speeds.
Scalability: Supports sharding and replication to scale data across multiple servers.
Caching and messaging: Typically used for caching or as a message queue.

Redis does not meet the characteristics of a relational database because it:

Does not use a table structure to store data.
Does not support relational model.
Does not provide ACID transaction processing.
No SQL query language.

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