Why Java 26’s New UUID API Fixes the Biggest UUID Pitfall

The article explains how random UUIDs degrade database write performance, introduces the RFC 9562 UUIDv7 format that embeds a timestamp for natural ordering, shows JDK 26’s new UUID.ofEpochMillis() API, discusses its monotonicity limitation, and compares UUIDv7 with Snowflake and ULID for practical ID generation.

ULIDUUIDv7database indexing

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Why Java 26’s New UUID API Fixes the Biggest UUID Pitfall

Sohu Tech Products

Nov 2, 2022 · Fundamentals

Understanding ULID: Features, Specification, and Python Usage

This article explains ULID (Universally Unique Lexicographically Sortable Identifier), compares it with UUID, outlines its technical specifications, lists its advantages and typical application scenarios, and provides detailed Python examples for generating and manipulating ULIDs.

Distributed SystemsPythonULID

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Understanding ULID: Features, Specification, and Python Usage