技能 编程开发 数据库设计原则与实践

数据库设计原则与实践

v20260410
database-design
本技能涵盖了现代数据库设计的全流程知识,帮助用户掌握超越基础SQL模式的系统化思维。内容包括模式设计、关系建模、高性能索引策略、ORM选择以及查询优化(如N+1问题)。适用于需要构建健壮、可扩展数据系统的架构师和开发者。
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概览

Database Design

Learn to THINK, not copy SQL patterns.

🎯 Selective Reading Rule

Read ONLY files relevant to the request! Check the content map, find what you need.

File Description When to Read
database-selection.md PostgreSQL vs Neon vs Turso vs SQLite Choosing database
orm-selection.md Drizzle vs Prisma vs Kysely Choosing ORM
schema-design.md Normalization, PKs, relationships Designing schema
indexing.md Index types, composite indexes Performance tuning
optimization.md N+1, EXPLAIN ANALYZE Query optimization
migrations.md Safe migrations, serverless DBs Schema changes

⚠️ Core Principle

  • ASK user for database preferences when unclear
  • Choose database/ORM based on CONTEXT
  • Don't default to PostgreSQL for everything

Decision Checklist

Before designing schema:

  • Asked user about database preference?
  • Chosen database for THIS context?
  • Considered deployment environment?
  • Planned index strategy?
  • Defined relationship types?

Anti-Patterns

❌ Default to PostgreSQL for simple apps (SQLite may suffice) ❌ Skip indexing ❌ Use SELECT * in production ❌ Store JSON when structured data is better ❌ Ignore N+1 queries

When to Use

This skill is applicable to execute the workflow or actions described in the overview.

信息
Category 编程开发
Name database-design
版本 v20260410
大小 6.98KB
更新时间 2026-04-12
语言