6 — Query discipline and SQL mastery
| Part | Title | Focus | Key Topics | | :--- | :--- | :--- | :--- | | | JDBC and Database Essentials | Bridging the gap between developers and DBAs. | Connection management, batch updates, statement caching, result set fetching, transactions. | | Part II | JPA and Hibernate | Using JPA and Hibernate without compromising performance. | Efficient mappings, fetching best practices, caching, concurrency control. | | Part III | jOOQ | Advanced, type-safe SQL querying. | Window functions, CTEs, upsert, stored procedures, database functions. |
The book is highly regarded by Java experts and practitioners.
You cannot find a legally free PDF download of High-Performance Java Persistence . The author sells the book through official channels: vlad mihalcea high-performance java persistence pdf
The book is structured into three primary parts, moving from low-level database fundamentals to high-level ORM abstractions:
This article provides a comprehensive overview of the concepts covered in the book, explaining why it is a critical resource for optimizing Java persistence.
Always ensure you are accessing the PDF legally via purchasing from the official Gumroad store or via the Manning Early Access Program (MEAP). Supporting authors like Vlad ensures the ecosystem continues to produce high-quality technical content. 6 — Query discipline and SQL mastery |
Purchase the official PDF from the publisher or Vlad’s Gumroad store. Keep it in your cloud drive, on your tablet, and on your work desktop. Highlight the "Proxies and Lazy Loading" chapter. Bookmark the "Batch Updates" section. Then, watch your database queries transform from a liability into a competitive advantage.
The book is over 450 pages and is meticulously organized to take you from theory to highly practical, code-driven solutions. Based on the author’s own chapter breakdowns, the topics include:
Utilizes a @Version column to check for concurrent changes before committing. No physical database locks are held. High-concurrency systems with low data contention. | The book is highly regarded by Java
The final part of the book is dedicated to jOOQ, a library for building type-safe SQL queries directly in Java. It explores advanced features like window functions and common table expressions, showing how to use them for complex reporting and data manipulation tasks.
Vlad also provides in-depth articles on his blog, which serves as a great complement to the book.
How to reduce network round-trips by grouping statements.
Why standard database connections are expensive, and how to properly size connection pools using frameworks like HikariCP.
The book dives into advanced mapping techniques to maximize efficiency.