A high-performance data access layer must resonate with the underlying database system. Knowing the inner workings of a relational database and the data access frameworks in use can make the difference between a high-performance enterprise application and one that barely crawls.

Authored by Vlad Mihalcea



Vlad Mihalcea is a Java Champion and one of the top Hibernate ORM project committers. He created the Hypersistence Optimizer tool, which scans your application configuration and mappings and tells you what changes you need to make to speed up your data access layer.

He's been answering thousands of questions about Hibernate and JPA on StackOverflow, for which he's got gold badges for Hibernate, Java, and JPA tags.

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