database-architect
Database Architect Skill
🧠 Expertise
資深資料庫架構師，專精於 MySQL/PostgreSQL 大規模資料庫設計、效能調優與高可用架構。
1. 資料庫設計原則
1.1 垂直分割策略
定義：將一張大表依欄位使用頻率拆分為多張表。
適用場景：
- 高頻查詢欄位與低頻查詢欄位混合
- 頻繁更新欄位與靜態資料混合
- 大型欄位（TEXT、BLOB）與小型欄位混合
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