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Technical Articles

Database

Redis

Is redis software?

Yes, Redis is a software. Redis is an open source, memory-based, key-value storage database that can store and retrieve key-value data.

Apr 19, 2024 pm 08:57 PM

redis 键值对

Is redis a web server?

No, Redis is not a web server. It is an in-memory NoSQL data structure store for efficient storage and retrieval of data.

Apr 19, 2024 pm 08:54 PM

redis apache nginx iis

Is redis a server or a database?

Redis is both a server, providing network connections and request processing, and a database, supporting in-memory data storage and fast data retrieval operations. Its features include in-memory storage, rich data types, network communications, and high availability, making it suitable as both a server and a database.

Apr 19, 2024 pm 08:52 PM

redis

What protocol does redis use?

Redis uses the Redis Protocol (RESP), a binary protocol with the following advantages: Fast and efficient: Binary-based, faster than text protocols. Ease of use: Easy to parse and write client libraries. Extensible: supports adding new commands and functions.

Apr 19, 2024 pm 08:45 PM

python redis

How to use five data types of redis

Redis provides five data types: String: stores a single string value. Hash table: stores key-value pairs, used for objects or maps. List: Stores an ordered sequence of elements, used in arrays or queues. Collection: stores unique elements, used for unique values or labels. Sorted set: stores elements with fractions, sorted by fraction from low to high.

Apr 19, 2024 pm 08:30 PM

redis 键值对

In what scenarios are the five data types of redis used?

Redis provides five basic data types, which are suitable for the following scenarios: String: cache query results, counter, queue. Lists: To-do lists, shopping carts, FIFO/LIFO queues. Collection: followers, tags, collection operations. Hash table: object information, user profile, shopping cart contents. Ordered collections: leaderboards, task priority queues, geospatial indexes.

Apr 19, 2024 pm 08:27 PM

redis 键值对

The five major data types of redis

The five major data types of Redis are: 1. String; 2. Hash; 3. List; 4. Set; 5. Ordered set. Each data type has its unique functions and operations.

Apr 19, 2024 pm 08:24 PM

redis 键值对

Redis five basic data types

Redis provides five basic data types: strings, hashes, lists, sets and ordered sets, which are suitable for different data storage scenarios. These types support a variety of operations such as storage, modification, deletion, sorting, and querying. They provide developers with flexible and effective data management solutions.

Apr 19, 2024 pm 08:22 PM

redis 键值对排列

Several data types of redis

Redis supports ten data types, providing flexibility for storing and processing different types of data: 1. String: stores a single value; 2. Hash: a data structure of key-value pairs; 3. List: an ordered sequence; 4. Set: a collection of unique values; 5. Ordered set: a weighted set; 6. Stream: a time-based sustainable data set; 7. Geography: geographical location data; 8. HyperLogLog: probabilistic data that estimates the number of unique elements Structure; 9. Bitmap: A compact data structure that represents a group of bits; 10. Module: Provides other data types through extensions.

Apr 19, 2024 pm 08:08 PM

redis 地理位置键值对

redis data types and structural characteristics

Redis supports multiple data types, each type has a unique structure: string: byte array, which can append, modify and obtain range data. List: An ordered byte array sequence that can add/pop elements and get/modify index elements. Hash: A collection of key-value pairs, which can set/get/delete key-value pairs and obtain all keys/values. Set: An unordered, unique set of elements, which can add/remove elements, obtain all elements, and find intersection/union. Ordered collection: An ordered collection of key-value pairs, which can add/delete key-value pairs, obtain key scores, and obtain range data of specified scores or keys.

Apr 19, 2024 pm 08:03 PM

redis 键值对

Redis five basic data types

Redis provides five basic data types, namely: string, hash, list, set and ordered set, which are used to store various types of key-value data, support fast retrieval and operation, and meet the needs of a variety of applications.

Apr 19, 2024 pm 08:01 PM

redis 键值对

Redis five data structures and usage scenarios

Redis provides five data structures: strings (storing simple data), hash tables (storing object data), lists (storing message queues), sets (storing unique elements), and ordered sets (storing elements sorted by score).

Apr 19, 2024 pm 07:57 PM

redis 键值对

Redis various data types underlying data storage structure

The data types of Redis use different underlying storage structures: String: Simple Dynamic String (SDS) Hash: Hash table, use linked list or jump table to handle hash collision list: Doubly linked list Collection: Hash table or integer collection, Sorted collections using Bloom filters: skip tables or dictionaries Geospatial indexes: skip tables or R-trees

Apr 19, 2024 pm 07:54 PM

redis

Redis's five data types correspond to the underlying structure

Redis provides five data types, each type has its underlying data structure: String: SDS (binary safe, space efficient) Hash: Hash table (key-value pair storage) List: Doubly linked list (ordered data collection) Collection : Set of integers or hash table (unduplicated elements) Ordered set : Jump list (sort by score and range lookup)

Apr 19, 2024 pm 07:48 PM

redis 键值对