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

數據庫模式設計、遷移、使用 SQL、Exped ORM、Flyway 進行查詢優化。用於數據庫、遷移、模式、sql、flyway 標籤。提供遷移模式、驗證命令、回滾策略。 來源：microck/ordinary-claude-skills。

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