As China pushes for technology self-reliance, many enterprises are migrating from international databases like PostgreSQL to domestic alternatives such as DM (DaMeng). This migration is not just a technical swap but involves careful planning around compatibility, performance tuning, and data integrity. The guide outlines a phased approach, starting with a thorough assessment of existing database schemas and dependencies, followed by incremental migration and rigorous testing. Key challenges include differences in SQL syntax, stored procedures, and transaction handling, which require adaptation layers or code refactoring. For global developers, this trend highlights the importance of building database-agnostic applications to future-proof against regional technology shifts. Understanding these migration patterns can also inform better database design practices that are portable across different systems.
A practical guide to migrating from PostgreSQL to DM (DaMeng), China's domestic database, covering key challenges and strategies for a smooth transition.