How many commands are divided into redis database?
Redis database commands can be divided into five types: 1. String operations; 2. Hash tables store key-value pairs; 3. List management of ordered elements; 4. Set operations of unordered unique elements; 5 .Ordered collections sort elements by score and support range queries.
Redis database command types
Redis database commands are divided into five basic types:
1. String commands
- are used to operate string values, including setting, getting, appending and comparing.
2. Hash table command
- # is used to operate key-value pair storage. Each key corresponds to a value and can store complex data structures. .
3. The list command
- is used to operate an ordered collection of elements, and can be used for insertion, deletion, retrieval and range query.
4. Collection command
- is used to operate a collection of unordered and unique elements, which can be added, deleted, obtained and combined/ intersection operation.
5. The ordered set command
- is similar to the set command, but the elements are sorted by score, and range queries and rankings can be obtained.
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