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 UUIDv7A record of comparing UUIDv4, ULID, and UUIDv7 while considering whether to use UUIDs as identifiers and how they differ in index performance and ordering behavior.UUIDDatabaseIndexPerformance