字符集统一 utf8mb4 / utf8mb4_0900_ai_ci，引擎统一 InnoDB，每张表必须写 COMMENT。 核心业务表建物理外键，保证引用完整性。 审计、事件、通知、幂等表不建外键：这些表需要独立归档、批量清理， 外键会造成级联删除风险与写入锁等待；改由应用层校验 + 索引。

本内容遵循CC 4.0 BY-SA版权协议 本文提供基于SpringBoot的医院病房管理系统的完整软件工程建模成果，涵盖功能结构图、数据流图（DFD）、系统流程图、UML类图、时序图、用例图等核心设计图，以及8张表的MySQL数据库脚本和配套文档。所有图表均源自真实项目交付 ...

本内容遵循CC 4.0 BY-SA版权协议 本文介绍基于SpringBoot的毕业生去向管理系统，覆盖功能结构图、数据流图（DFD）、系统流程图 ...

IntroductionRecently, it has become standard for AI to write the scaffolding for code if you tell it what you want to build in plain language. The bottleneck of personal development has shifted from ...

Oracle’s Deep Trust AI Architecture moves AI agent security into the database. This article looks at the announcement, how it ...

SQLPro Studio is a native Mac database app that connects to MySQL, PostgreSQL, Oracle, and more, no Java required.

Hello, I am Iriyama, the GIS entertainer.▷ MapQuest, where Iriyama works, is here ▷ For those who want to know more about GIS ...

Data streaming vendor Confluent claims that it can now answer questions about the live state of a business directly from its ...

Learn how to prevent duplicate writes in Cloudflare D1 using fencing tokens, guarded SQL batches, and revision-based cache ...

Scale Databricks Apps from design to production: set latency targets, keep state recoverable, load test, and size instances, ...

Aurora vs RDS in 2026: compare instance, ACU and DPU billing, DSQL rates, engine fit and a migration plan before you pick a ...

CAD backend to test the layer where payment software fails. The post defends six choices—decimal arithmetic, append-only double-entry books, four-entry cross-currency moves, pessimistic locking, ...