Question: When should I use Redis and when to use MySQL?

When use Redis vs MySQL?

Redis stands for Remote Dictionary Server which is an in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.

Difference between Redis and MySQL :

4. It is Data Schema free. In MySQL Data Schema is fixed.
5. It does not support XML data format. It supports XML data format.

Do I need Redis with MySQL?

You need to make Redis database as primary and Mysql database as slave, It means you have to fetch data first from Redis and if data not found/retrived then you have to get data from Mysql if data found then update Redis data so next time you can retrive data from redis. basic snapshot as mentioned below.

When should I use Redis?

Redis can be used with streaming solutions such as Apache Kafka and Amazon Kinesis as an in-memory data store to ingest, process, and analyze real-time data with sub-millisecond latency. Redis is an ideal choice for real-time analytics use cases such as social media analytics, ad targeting, personalization, and IoT.

Can I use Redis with MySQL?

Redis is an open-source and in-memory data structure store that can be used for caching, real-time analytics, searching, and machine learning. Integrate Redis with PHP and MySQL will improve your application performance because Redis stores data in RAM. You can use it with databases like MySQL or MariaDB.

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Is Redis faster than MySQL?

In terms of the efficiency of updating databases, Redis is superior to MySQL while SQLite is slowest. However, in terms of the efficiency of querying from databases, SQLite seems to be about ten times faster than Redis and MySQL.

Is Redis a no SQL database?

Redis is an open source (BSD), in-memory key-value data structure store, which can be used as a database, cache or message broker. It’s a NoSQL database used in GitHub, Pinterest and Snapchat.

Why is Redis faster than SQL?

In Redis, Read and Write operations are extremely fast because of storing data in primary memory. In RDBMS, Read and Write operations are slow because of storing data in secondary memory. Primary memory is in lesser in size and much expensive than secondary so, Redis cannot store large files or binary data.

What are the disadvantages of Redis?

There is no query language (only commands) and no support for a relational algebra. You cannot submit ad-hoc queries (like you can using SQL on a RDBMS). All data accesses should be anticipated by the developer, and proper data access paths must be designed. A lot of flexibility is lost.

When should you not use Redis?

However it is not recommended to use redis if the data you want to store in it exceeds the amount of ram in your server. Virtual memory support is being dropped from redis in versions after 2.4, so you should definitely avoid using it.

Is Redis faster than MongoDB?

Redis is faster than MongoDB because it’s an in-memory database. This makes it a great choice for building complicated data structures quickly.

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