Detailed explanation of redis command [With Redis command operation manual]

The following Redis tutorial column will introduce redis commands to you. I hope it will be helpful to friends in need!

Note: Due to space limitations, the following only briefly summarizes the redis command. Please move to the "Redis Command Operation Chinese Manual", You can view and study online!

Redis command:

• Redis key

The Redis key command is used to manage redis keys.

The basic syntax of the Redis key command is as follows:

redis 127.0.0.1:6379> COMMAND KEY_NAME

• Redis string (String)

Redis character Related commands of string data type are used to manage redis string values. The basic syntax is as follows:

redis 127.0.0.1:6379> COMMAND KEY_NAME

• Redis Hash

Redis Hash is a mapping table of string type fields and values. Hash is particularly suitable for storing objects.

• Redis List (List)

Redis list is a simple list of strings, sorted in insertion order. You can add an element to the head (left) or tail (right) of the guide list

• Redis Collection (Set)

Redis's Set is an unordered collection of string type. Set members are unique, which means that duplicate data cannot appear in the set

• Redis ordered set(sorted set)

Redis ordered set, like a set, is also a collection of string type elements and does not allow duplicate members.

• Redis HyperLogLog

Redis added the HyperLogLog structure in version 2.8.9.

• Redis publish and subscribe

Redis publish and subscribe (pub/sub) is a message communication mode: sender (pub) Send a message and the subscriber (sub) receives the message.

• Redis Transaction

Redis transaction can execute multiple commands at one time and comes with the following two important guarantees:

A transaction is a single isolated operation: all commands in the transaction will be serialized and executed in order. During the execution of the transaction, it will not be interrupted by command requests sent by other clients.

A transaction is an atomic operation: either all commands in the transaction are executed, or none of them are executed.

• Redis script

Redis script uses the Lua interpreter to execute the script. Reids version 2.6 provides built-in support for the Lua environment. A common command to execute scripts is EVAL.

• Redis connection

The Redis connection command is mainly used to connect to the redis service.

• Redis Server

Redis server commands are mainly used to manage the redis service.

• Redis Ping command

The Redis Ping command uses the client to send a PING to the Redis server. If the server is operating normally, it will Returns a PONG.

Related recommendations: "redis download and install"

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