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❮ Php Namespace Intro C Get Keycode ❯

Detailed Explanation of Redis Data Structures

Category Programming Technology

Redis data types are divided into: String type, Hash type, List type, Set type, and Sorted Set type.

How fast does Redis operate, which makes it so popular? An ordinary laptop can complete one hundred thousand read and write operations in one second.

Atomic operation: The smallest unit of operation, which cannot be further divided. That is, the smallest execution unit that cannot be inserted by other commands. There is no race condition under high concurrency.

KEY naming: A good suggestion is to use article:1:title to store the title of the article with ID 1.


I. Preface


II. Redis Data Types and Commands

  1. Redis data type - String type: This is easy to understand, one key stores a string. If you want to store data? Convert it to Json or other string serialization.

  2. Redis data command - String type:

Set types are unordered, with each element being unique. In contrast, sorted sets are ordered, with each element also being unique. The difference between sorted set types and set types is that sorted sets assign a score attribute to each element, which is used for sorting. Sorted sets are implemented using hash tables and skip lists, allowing for fast operations on middle elements compared to lists, with a time complexity of O(log(N)). The sorted set type in Redis data types consumes more resources than the list type in Redis data types.


10. Redis Data Commands: Sorted Set Type

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