Tagged articles

phone number

4 articles · Page 1 of 1
Cloud Architecture
Cloud Architecture
Apr 25, 2026 · Databases

How a Phone Number Field Can Crash a 2B‑User Database – Architect’s Design Guide

A mis‑designed phone number column can silently degrade index performance, overload CPU, and cause a cascade of timeouts in a 2‑billion‑user system, but by treating the phone as a domain value object, using a normalized VARCHAR, aligning indexing rules, and applying consistent sharding and migration strategies, you can prevent the database from collapsing under high concurrency.

Database DesignMySQLSchema Migration
0 likes · 31 min read
How a Phone Number Field Can Crash a 2B‑User Database – Architect’s Design Guide
Java Backend Technology
Java Backend Technology
Feb 25, 2025 · Fundamentals

Why Storing Phone Numbers as Strings Beats Ints in Java

This article analyzes the trade‑offs between using int and String to store phone numbers in Java, covering type characteristics, the semantic nature of phone numbers, JVM bytecode implications, performance considerations, and practical case studies to guide developers toward the optimal choice.

Data TypesJVMphone number
0 likes · 8 min read
Why Storing Phone Numbers as Strings Beats Ints in Java