WeChat Client Technology Team

Apr 9, 2024 · Databases

How WCDB Evolved: Multi‑Language Support, Powerful SQL Builder, and Ultra‑Fast Backup

This article details the major upgrades of WCDB, including expanded language support, a redesigned Winq SQL builder, robust data backup and repair mechanisms, seamless data migration, on‑the‑fly compression, automatic column addition, and performance optimizations such as interruptible transactions and WAL header improvements.