Constructs efficient, composable, and type-safe database queries using Elixir's Ecto Query DSL.
The Ecto Query Patterns skill provides a comprehensive toolkit for mastering the Ecto Query DSL within Claude Code. It enables developers to build complex database interactions ranging from basic CRUD operations to advanced query composition, multi-level joins, and optimized preloading strategies. By implementing these standardized patterns, developers can ensure their Elixir applications are performant, secure against SQL injection, and highly maintainable through reusable query logic.
Key Features
01Comprehensive patterns for keyword and binding-based query syntax
02Dynamic query building techniques using the pin operator for safe interpolation
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04Optimized data preloading strategies to eliminate N+1 query performance issues
05Support for complex aggregations, subqueries, and raw SQL fragments
06Advanced join implementations including inner, left, and association-based joins
Use Cases
01Building high-performance, paginated API endpoints for Elixir applications
02Refactoring scattered database logic into reusable, composable query modules
03Creating complex analytical reports using SQL aggregations and group-by clauses
