Database Implementation

SKILL.md

Domain-specific guidance for database schema design, migrations, and data modeling.

✅ Migration runs without errors on clean database ✅ Schema matches design specifications ✅ Indexes created correctly ✅ Constraints validate as expected ✅ Rollback works (if applicable) ✅ Tests pass with new schema

Issue: Adding NOT NULL column to table with existing rows

数据库模式设计、迁移、使用 SQL、Exped ORM、Flyway 进行查询优化。用于数据库、迁移、模式、sql、flyway 标签。提供迁移模式、验证命令、回滚策略。 来源：microck/ordinary-claude-skills。

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