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Which is more difficult to know, redis or mysql? This problem may be often seen in our daily study or work. I hope you can gain a lot from this question. The following is the reference content that the editor brings to you, let's take a look at it!

Summary of the differences between redis and mysql

On the type

In terms of type, mysql is a relational database and redis is a cache database

In effect

Mysql is used to persistently store data to the hard disk. It is powerful, but slow.

Redis is used to store frequently used data into the cache with fast reading speed.

On demand

Mysql and redis are generally used together because of their different requirements. (redis tutorial)

2. Detailed explanation

Database types for 1.mysql and redis

Mysql is a relational database, which is mainly used to store persistent data and store the data in the hard disk with slow reading speed.

Redis is NOSQL, that is, non-relational database, is also a cache database, that is, the data is stored in the cache, the cache read speed is fast, can greatly improve the running efficiency, but the preservation time is limited.

The operating Mechanism of 2.mysql

As a relational database with persistent storage, the relatively weak point of mysql is that there is an IWeiO operation every time you request to access the database, if you visit the database repeatedly and frequently. First, it will spend a lot of time on repeatedly linking the database, resulting in slow running efficiency; second, repeated access to the database will also lead to excessive database load, then the concept of caching is derived.

3. Caching

A cache is a cache for data exchange. When a browser executes a request, it first looks for it in the cache and, if it exists, gets it; otherwise, it accesses the database.

The advantage of cache is that it is fast to read.

4.redis database

Redis database is a cache database, which is used to store frequently used data, so as to reduce the number of visits to the database and improve operational efficiency.

Third, the degree of difficulty

Redis can be considered simpler than mysql, but because of the needs of the project, both are often used in combination. If you learn one kind of database well, the others are easy to understand.

Thank you for reading! After reading the above, do you have a general idea of which is more difficult, redis or mysql? I hope the content of the article will be helpful to all of you. If you want to know more about the relevant articles, you are welcome to follow the industry information channel.

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