#uuid

Pick Your Cut: A Chef’s Guide to GUID Versions

Most developers know one GUID version. They call Guid.NewGuid(), uuid.uuid4() or crypto.randomUUID(), get a random 128-bit value and move…

UUID v7 in SQL Server: Can You Really Use It? (The Limitation Nobody Tells You About) Deep Dive

By Pankaj Ikhar — Solution Architect | Mentor | Coach #LearnWithPankaj | Follow for Career Growth & Interview Preparation

UUID v4 vs UUID v7: What Every Developer Must Know in 2026

By Pankaj Ikhar — Solution Architect | Mentor | Coach #LearnWithPankaj | Follow for Career Growth & Interview Preparation

UUIDv7 and RFC 9562 FAQ

I am a contributor to RFC 9562, and I wrote this FAQ because I kept seeing the same concerns about UUIDv7 surfacing across Hacker News…

[MM’s] Tiny Bench Notes — UUID Generation Performance Is Not Random

Benchmarking UUID Versions in Java with JMH

How We Replaced BIGSERIAL with UUIDv7 in Go and PostgreSQL and Kept Performance

I spent years defaulting to BIGSERIAL primary keys in PostgreSQL. It works until the day you need to merge data from two environments, or a…

Reasons UUID Choice Affects Index Locality, Write Amplification, and Page Splits

Why Auto-Increment Is Slowly Killing Your Database (And What Smart Developers Use Instead in 2026)

Every developer has written this line at some point:

Hardening Local Artificial Intelligence: Architecture of a Protected Legal Appliance

Today, the adoption of Generative Artificial Intelligence systems in Public Administration and educational environments raises two central…

Postgres Partition Range by timestamp based UUIDs

ช่วงนึงที่ผมทำงานในทีม มักจะได้ยินคนพูดบ่อยๆ ว่าเวลาเราออกแบบ Database ใหญ่ๆ อย่าง Oracle หรือ Postgres สิ่งสำคัญที่ห้ามมองข้ามเลยคือเรื่อง…

UUID vs Auto-Increment: What Your MySQL Table Pays for the Convenience

Both work. One costs you twice the disk space and a lot more write IOPS.

The Great ID Debate: UUID vs. ULID vs. UUIDv7

When building a database or distributed system, picking the right unique identifier is one of those early architectural decisions that can…

When UUIDs Hurt More Than They Help

Understanding the hidden database costs of random identifiers — and how ordered IDs fix them

How to Generate UUID v4 Online (Free UUID Generator Tool)

# How to Generate UUID v4 Online (Free UUID Generator Tool)

GUID v4 vs v7: Why You Should Care About the Shift

Most developers still reach for Guid.NewGuid(), uuid.uuid4(), or crypto.randomUUID() without thinking twice. It works, the collision risk…

The best GUID Generator Online? Comparing Popular Tools for Developers

If you need a GUID/UUID quickly, many online generators will do the job. But for real developer workflows you often want more: modern UUID…

Database Identification: Which Should You Use and Why?

Photo by Tyler Easton on Unsplash

When Curiosity increases and Parallel Streams becomes a Deep Dive to UUID Generation

Sometimes the best learning happens by accident. This article started with a simple disagreement in an interview. And it ended with me…

Integer or UUID primary keys in relational databases?

Database primary keys are integers by default, but they can leak information and make merging databases more challenging. To address these…

Morning Coffee Rituals: Discovering the Self-Care That Brightens Your Day

Starting the day with a warm cup of coffee is more than just a habit for many people. It’s a moment of calm, a small ritual that sets the…

PostgreSQL UUID Performance: Random (v4) vs Time-Ordered (v7) — A Deep Dive 🎯

How ordered UUIDs dramatically improve insert speed, index locality, and overall throughput.

UUID vs ULID: What’s the Difference and Which One Should You Use?

In today’s fast-paced world of software development, generating unique identifiers is crucial. Whether you’re managing databases, building…

Why You Should Use GUIDs Instead of Integers for IDs

Choosing Unique Identifiers: Snowflake ID vs UUIDv4 vs UUIDv7 vs ULIDs

When designing database schemas, you often need to choose a unique identifier strategy. There are several options available, each with…

Stop Using INTs for Primary Keys (Unless You Really Know Why)

UUIDs and ULIDs are more than buzzwords — they’re tools for future-proofing your database.

Your Database IDs are a Mess. Let’s Fix Them: Long vs. UUID vs. ULID

You’ve been there. You spin up a new service, create a new entity, and then you pause at the id field.

Faster ULID generation — Ferroid

I’ve spent a lot of time working with distributed systems, and if you’re building anything that needs time-sorted, unique identifiers…