2 Ways to Make a UUID Generator for Postgres

Postgres performs better than some other databases because it supports concurrent write operations without the need of read/write locks. Because it is completely ACID-compliant and provides transaction isolation and snapshots, many applications are using Postgres these days. Unfortunately, while PostgreSQL is great for storing and comparing UUID data, it lacks capabilities for creating UUID values in its core. Instead, it relies on third-party modules to create UUIDs using specified techniques. In this article, you'll learn about the PostgreSQL UUID data type and how to generate UUID values with examples utilizing various functions and modules.

What Is a UUID?

UUID stands for Universal Unique Identifier, defined by RFC 4122 and other related standards. A UUID is a series of lower-case hexadecimal digits separated by hyphens. UUIDs are a combination of 36-character sequences of numbers, letters, and dashes that are intended to be globally unique.

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