The PDF was dense, filled with diagrams of database internals and code snippets that looked like ancient spells. She skipped the foreword and landed on the chapter titled "Fetching Strategies: The Silent Killer" .

High-performance Java persistence cannot ignore the database engine itself.

Searching for a is the first step. The second step is reading it with a JVM profiler attached to your current codebase.

Before we dissect the content, let's address the format. Why are developers constantly searching for the PDF version of this book?

This executes a single SQL update statement, bypassing the Persistence Context entirely and saving massive overhead.

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