What is UUID
Learn about UUID structure, types, and standards
UUID (Universally Unique Identifier) is a 128-bit identifier used to uniquely identify information in computer systems. UUIDs are standardized by RFC 4122 and are designed to be unique across space and time without requiring a central registration authority. They are commonly used in distributed systems, databases, and software applications.
Generate
Create unique identifiers using cryptographic algorithms
Store
Use as primary keys in databases and data structures
Share
Exchange unique identifiers across distributed systems
Global Uniqueness
UUIDs are designed to be unique across all space and time without coordination
No Central Authority
Generate unique IDs without requiring a central registration system
Standardized Format
RFC 4122 standard ensures compatibility across different systems
Distributed Systems
Perfect for microservices, APIs, and distributed architectures
Database Independence
Generate IDs before database insertion, useful for batch operations
Security
UUID v4 uses cryptographically secure random generation
Database Primary Keys
Use UUIDs as primary keys to avoid ID conflicts in distributed databases
API Request Tracking
Track API requests and responses with unique correlation IDs
Session Management
Generate unique session identifiers for web applications
File Naming
Create unique filenames to prevent conflicts in file systems
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