Published onJune 12, 2025Reducing Count Query Cost in PaginationHow I compared Page and Slice after reviewing the cost of automatic count queries in list APIs.JPAPaginationSpring-DataPerformance
Published onJune 4, 2025JPA N+1 Problem: Cause and Fix OptionsA comparison of Fetch Join, EntityGraph, and Batch Size while handling related data queries in a gift API.JPAHibernateSpringPerformance
Published onMay 23, 2025UUID Primary Keys and Index Performance: UUIDv4, ULID, and UUIDv7Comparing UUIDv4, ULID, and UUIDv7 for identifier design, index performance, and ordering behavior.UUIDDatabaseIndexPerformance