What are the five data types and usage scenarios of redis

Redis provides five data types, namely: string: stores text, JSON data, cache, counter; Hash: stores user data, session information, object attributes; list: stores queue, timeline , ranking, shopping cart; collection: stores tags, categories, watch lists, blacklists; ordered collection: stores rankings, voting, priority queues, and time series.

Redis’s five data types and usage scenarios

Redis provides a variety of data types to meet different needs Data storage and processing requirements, each data type has its unique characteristics and usage scenarios.

1. String

• Features: simple, sortable, supports binary security
• Usage scenarios: storing text, JSON data, cache, counter

2. Hash

• Features: key-value pair storage, supports field-level operations
• Usage scenarios: storing user data, session information, object attributes

3. List

• Characteristics: Ordered Set, supports insertion, deletion, and pruning
• Usage scenarios: storage queue, timeline, ranking, shopping cart

4. Set

• Features: Unordered collection of unique elements, supports intersection, union, difference set
• Usage scenarios: storage tags, classifications, watch lists, blacklists

5. Sorted set

• Features: ordered set, with weight value, supports range retrieval and ranking
• Usage scenarios: Store rankings, voting, priority queues, time series

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