Dynamic SQL Queries with Spring Data JPA in 6 Minutes

If your repository layer has multiple queries for different filter combinations, your data access logic is already getting harder to maintain.

In this video, we implement dynamic SQL queries in Spring Data JPA using Specifications — a composable approach that helps avoid query duplication and keeps your filtering logic clean.

We build a flexible filtering system with optional parameters (category, language, format, price) and show how Specification.unrestricted() skips empty filters, while Specification.allOf(…) combines them into a single query.

We also address a common issue: string-based field access. It’s fragile and can break at runtime when your model changes. Using the JPA Static Metamodel, we move to compile-time safety.

The result is a cleaner, more maintainable way to implement dynamic filtering in Spring-based applications.

Видео Dynamic SQL Queries with Spring Data JPA in 6 Minutes канала CyberJAR