Ways for redis storage applications to use different databases

This article brings you about how redis storage applications use different databases. Most of the knowledge points are often used by everyone, so I will share them for you as a reference. Let's follow the editor and have a look.

Under redis, the database is identified by an integer index, not by a database name. By default, a client connects to database 0. The following parameters in the redis configuration file control the total number of databases:

Databases 16

You can switch to a different database with the following command

Redis > select 2OK

Then, all commands will use Database 3 until you explicitly switch to another database.

Each database has its own space, so you don't have to worry about key conflicts.

In different databases, the same key gets its own value.

The flushdb command clears the data, which only clears the data under the current database and does not affect other databases.

The flushall command clears the data for this instance. Be extra careful before carrying out this order.

The number of databases is configurable, which is 16 by default. Modify the databases directive under redis.conf:

Databases 64

Redis does not provide any way to associate and identify different databases. Therefore, you need to track what data is stored in which database.

Therefore, the above scenario of quickly opening 200 instances can be stored in different databases without having to open so many instances.

So much for sharing the methods of redis storage applications using different databases. I hope the above content can be of some help and learn more knowledge. If you like this article, you might as well share it for more people to see.