Data Types in PostgreSQL: UUID Data Types || PostgreSQL Full Playlist #53

Welcome to Part 53 of our full PostgreSQL tutorial playlist! 🎥
In this video, we explore the UUID (Universally Unique Identifier) data type in PostgreSQL — a crucial tool for distributed systems and secure, globally unique identifiers.

UUIDs are 128-bit identifiers standardized by RFC 4122, and PostgreSQL provides native support for them using the uuid data type. We'll guide you through:

• What UUIDs are and how they're formatted

• Differences between UUID and SERIAL types

• How to use the uuid-ossp extension to generate UUIDs

• Creating tables with UUID primary keys

• Writing SQL statements using UUIDs (including inserts, selects, and references)

• Use cases and performance considerations

• Bonus: Real-life examples for UUID-based design

💡 Whether you're building microservices, secure APIs, or scalable systems — UUIDs can give your application a powerful edge in uniqueness and security.

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