Databases

Purpose

Guide database technology selection, schema design, query optimization, and migration patterns -- with EasyPlatform-specific context for service-to-database mapping.

When to Use

• Choosing which database technology for a new feature or service
• Designing a schema or data model for a new entity
• Optimizing slow queries or adding indexes
• Writing or reviewing database migrations
• Troubleshooting connection or performance issues
• Understanding EasyPlatform's database topology

When NOT to Use

• Writing C# repository code -- use easyplatform-backend skill (repositories follow platform patterns)
• Cross-service data access design -- use arch-cross-service-integration skill (must use message bus, never direct DB access)
• General backend CQRS implementation -- use easyplatform-backend skill
• Frontend data fetching -- use frontend-angular-api-service skill