Five data types of redis

Redis is a NoSQL database that supports five data types: strings, hashes, lists, sets, and ordered sets. String: can store text or numbers and is used to store basic information. Hash: A map of key-value pairs used to store user data and other complex information. List: An ordered collection used to store shopping lists or chat history. Collection: An unordered collection of unique values ​​used to store labels or user groups. Sorted Set: An ordered set sorted by score, used to store rankings or scores.

Five data types of Redis

Redis is a NoSQL database that supports five basic data types ：

1. String

• The simplest data type, which can store text or numbers.
• Can be used to store user details, item quantities, or other uncomplicated information.

2. Hash

• is a mapping type where the key is a string and the value is a string or other data type.
• can be used to store user data, where the key is the username and the value contains other information (such as name, email).

3. List (list)

• Ordered collection, in which elements are stored in insertion order.
• Can be used to store shopping lists, to-do lists or chat history.

4. Set

• An unordered collection of unique values.
• Can be used to store labels, user groups, or other unique values ​​that need to be looked up quickly.

5. Sorted set

• An ordered set in which elements are sorted by score.
• Can be used to store rankings, scores, or other values ​​that need to be stored in order.

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