What are the five data types of redis and their usage scenarios?

Redis supports five data types: strings, lists, hash tables, ordered sets and unordered sets. These types are suitable for storing various data scenarios, such as text data, ordered lists of elements, mapped key-value data, collections of elements sorted by scores, and unique collections of elements.

Redis five data types and usage scenarios

Redis is a NoSQL key-value database that supports five Basic data types:

1. String

• Description: A series of bytes that can be used as text data, binary data or any other type The data.
• Scenario: Store post content, user preferences, and configuration settings.

2. List

• Description: An ordered sequence of elements, elements can be added or removed from both ends of the list.
• Scenario: Store to-do lists, message queues, and rankings.

3. Hash table

• Description: A data structure that maps keys and values, allowing fast lookup and update of data.
• Scenario: Store user data (such as name, email, address), product catalog.

4. Ordered set

• Description: An ordered set of elements with unique members and supports sorting by score.
• Scenario: Store tasks sorted by priority, leaderboard rankings, and time series data.

5. Unordered set

• Description: A collection of elements that does not support sorting.
• Scenario: Store a unique set of elements (e.g. tags, user IDs), set membership checks.

The above is the detailed content of What are the five data types of redis and their usage scenarios?. For more information, please follow other related articles on the PHP Chinese website!