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Home Database MongoDB The difference between redis and mongodb

The difference between redis and mongodb

Apr 12, 2025 am 07:39 AM
redis mongodb the difference social media apps key value pair

The difference between Redis and MongoDB is as follows: Data structure: Redis is Key-Value storage, and MongoDB is a document database. Data model: Redis is non-relational, and MongoDB is SQL-like. Data operations: Redis provides atomic reading and writing, and MongoDB supports advanced data operations. Performance: Redis read and write performance is better than MongoDB. Persistence: Redis persistence is optional, MongoDB is enabled by default. Applicable scenarios: Redis is suitable for caching and quick search; MongoDB is suitable for document storage, content management, and social media applications.

The difference between redis and mongodb

The difference between Redis and MongoDB

Redis and MongoDB are both popular databases, but they vary in design and purpose.

1. Data structure

  • Redis: Key-Value storage, keys can be strings, hashes, lists, collections, and ordered collections.
  • MongoDB: Document database, documents are stored in a collection, and each document is a set of key-value pairs.

2. Data Model

  • Redis: Non-relational type, data is not stored in tables, but is stored in key-value pairs.
  • MongoDB: Class SQL, data is stored in a collection, collection is similar to tables, and documents are similar to rows.

3. Data operation

  • Redis: Provides fast and atomic read and write operations.
  • MongoDB: Provides more advanced data operations such as query, sorting, and aggregation.

4. Performance

  • Redis: Known for its excellent read and write performance, it is especially suitable for caching and fast searches.
  • MongoDB: It has good read and write performance, but is not as fast as Redis.

5. Persistence

  • Redis: Provides optional persistence, and data can be stored on disk in case of server failure.
  • MongoDB: Persistence is enabled by default, and data is always stored on disk.

6. Applicable scenarios

Redis:

  • cache
  • Session Management
  • queue
  • Ranking list

MongoDB:

  • Document storage
  • Content Management System
  • Social Media Apps
  • Mobile application backend

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