This article walks through the rationale, common functions, and real‑world case studies of storing and querying JSON columns in a relational database, exposing issues with null handling, batch updates, and dynamic SQL generation, and presents step‑by‑step debugging and robust solutions.
This article explains how three Hibernate annotations—@Formula, @SQLRestriction (or @Where), and @Filter—solve common JPA pain points such as scattered query logic, duplicated calculations, and hard‑coded filters, providing code‑reduction, better performance, and easier maintenance in Spring Boot 3 projects.
This article explains how to parse user‑defined query strings and convert them into type‑safe Spring Data Querydsl predicates, covering query patterns, code examples, dynamic query building, and handling complex parent‑child relationships in backend services.
The article describes how a growth operations team built a flexible, data‑driven system that dynamically groups users, generates queries across multiple data sources, and automates rule execution, while addressing scalability, real‑time constraints, and future extensibility through a Lambda‑style architecture.
