Redis data structure and commands

Redis is a key-value database; For redis, key is a string type, and value is only a binary string, redis does not care about its content;

Using different commands, redis decides to store values in a specific data structure;

For example, if you use the set command, the value will exist in the string; if you use hset, the value will exist in the set.

First, list the items to be analyzed and supplemented.

1. String

Mainly supports set append strlen getrange incr setbit and other commands

2. Hash

Mainly supports hset hmset and other commands

3. List

Mainly supports lpush

4. Set

Stores different values and supports commands such as sadd ismember sinter.

5 sorted set

Supports zadd zcount and other commands