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n-plus-one-problem

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Torkov24 / entity-graph

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Spring Boot demo comparing JPA lazy loading (N+1 problem) vs EntityGraph optimization. Shows performance difference between 11 queries vs 1 query for Books-Authors many-to-many relationship. Includes query counting, tests, and metrics.

java demo orm spring-boot jpa hibernate lazy-loading spring-data-jpa query-optimization entity-graph many-to-many performance-optimization sql-optimization database-performance n-plus-one-problem
  • Updated Sep 30, 2025
  • Java

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