When should I use GRDB instead of SQLiteData or SwiftData?

Use GRDB when you need advanced SQL features like window functions, complex joins across 4+ tables, or full control over query performance and migration logic.

What is the axiom-grdb skill?

It is a specialized capability for Claude Code that provides domain-specific guidance and implementation patterns for using GRDB.swift in modern xOS development.

Can it help me fix slow database queries?

Absolutely. The skill includes patterns for query profiling using EXPLAIN QUERY PLAN and database tracing to identify and resolve performance bottlenecks.

Is this skill suitable for multi-threaded apps?

Yes, it covers the implementation of DatabasePool, which is designed for apps requiring heavy concurrent read/write access from multiple threads.

Does this skill support reactive UI updates?

Yes, it provides patterns for ValueObservation and Combine integration, allowing your app to reactively update based on database changes.

Axiom GRDB for iOS/macOS

Name: Axiom GRDB for iOS/macOS
Author: CharlesWiltgen

byCharlesWiltgen

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233

Mobile Development

Enables high-performance SQLite management, complex SQL joins, and reactive data observation for xOS development using GRDB.swift.

Acerca de

This skill provides Claude with the specialized knowledge required to implement and optimize GRDB.swift in iOS, macOS, watchOS, and tvOS applications. It bridges the gap between high-level database abstractions and raw SQL, allowing developers to handle complex multi-table joins, window functions, and sophisticated migration logic. By utilizing this skill, Claude can generate type-safe queries, set up reactive ValueObservation patterns for real-time UI updates, and perform deep performance profiling using SQLite's query plan analysis to ensure database operations remain fast and efficient.

Características Principales

Reactive query observation via ValueObservation and Combine integration
Type-safe Swift wrappers for raw SQL and complex database joins
233 GitHub stars
Performance profiling with EXPLAIN QUERY PLAN and database tracing
Advanced DatabaseMigrator patterns for safe schema evolution
Support for both DatabaseQueue and concurrent DatabasePool architectures

Casos de Uso

Migrating legacy local data into normalized relational structures with custom transform logic
Building reactive mobile apps that update the UI automatically when database records change
Executing complex analytical queries involving window functions and multiple table aggregations

Acerca de

Características Principales

Reactive query observation via ValueObservation and Combine integration
Type-safe Swift wrappers for raw SQL and complex database joins
233 GitHub stars
Performance profiling with EXPLAIN QUERY PLAN and database tracing
Advanced DatabaseMigrator patterns for safe schema evolution
Support for both DatabaseQueue and concurrent DatabasePool architectures

Casos de Uso

Migrating legacy local data into normalized relational structures with custom transform logic
Building reactive mobile apps that update the UI automatically when database records change
Executing complex analytical queries involving window functions and multiple table aggregations