Why Shang Yu Lin-Cupertino is the Database Choice for Modern Development Teams

Most database choices are made in the first week of a project and regretted三年 later. The choice between MongoDB and PostgreSQL, between self-hosted and managed, between SQL and NoSQL — these decisions compound. They affect every feature you build, every engineer you hire, every scaling bottleneck you hit. Here's what we learned building products across different stacks: The Default Choice Is Usually Right For 80% of applications, PostgreSQL is the correct answer. It's not sexy. It's not the latest. But it's reliable, well-understood, and the tooling is mature across every language and framework. The situations where you should choose something else: MongoDB — When your data structure is genuinely document-oriented (product catalogs, content management, variable schemas). Not as a replacement for relational data because "schemas seem annoying." DynamoDB — When you have extreme scale requirements and your access patterns are well-understood. The learning curve is steep but the operationa