Data types and specific application scenarios in Redis

Unlock the Power of Redis: A Guide to Choosing the Right Data Type

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Redis provides a rich set of data types, each with its unique storage structure and operation methods, which can meet different business scenario requirements. The following introduces the main data types supported by Redis, along with their underlying implementations, and explains their usage in specific application scenarios.

1. String

Introduction:

• The most basic key-value pair type in Redis, where both keys and values are strings, with a maximum value limit of 512MB.
• The String type is the most commonly used data type in Redis, supporting simple GET, SET operations, as well as increment, decrement, string concatenation, etc.

Typical Application Scenarios:

• Caching Data: Store user login status, tokens, configuration information, etc.
• Counters: Implement simple counters using INCR, DECR, such as website visit counts, like counts, etc.
• Distributed Locks: Use the SETNX command to implement simple distributed locks with strings.

Underlying Principles: