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: 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: estimation A probabilistic data structure with a unique number of elements; 9. Bitmap: a compact data structure that represents a set of bits; 10. Module: provides other data types through extensions.
Data types of Redis
Redis is a powerful key-value database that supports a variety of complex data type. These data types provide flexibility in storing and processing different types of data, making them ideal for a variety of applications.
String
String is the most basic data type, used to store a single value. They can contain any type of character data, such as text, numbers, binary data, etc.
Hash
A hash is a key-value pair data structure that maps a field (key) to a value. This makes it easy to quickly store and retrieve information based on fields.
List
A list is an ordered sequence used to store a set of values. You can use operations such as push, pop, insert, and remove to manage values in the list.
Set
A set is a collection of unique values. It provides quick operations for adding, removing, and checking membership.
ZSet
An ordered set is a weighted set in which each member is associated with a score. This allows setting priorities between members and sorting them based on scores.
Stream
A stream is a time-based, sustainable data set designed to handle an unlimited number of messages. It provides functions for appending, trimming and reading messages.
Geo
Geo is a geographic data type used to store geographic locations such as longitude and latitude. It supports geo-queries on locations, such as finding locations within a given radius.
HyperLogLog
HyperLogLog is a probabilistic data structure that estimates the number of unique elements in a large collection. It provides approximate accuracy while using very little memory overhead.
Bitmap
A bitmap is a compact data structure used to represent a group of bits. It supports setting, clearing, and checking bits, making it ideal for tracking status or counting.
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