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jOOQ Masterclass

You're reading from   jOOQ Masterclass A practical guide for Java developers to write SQL queries for complex database interactions

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Product type Paperback
Published in Aug 2022
Publisher Packt
ISBN-13 9781800566897
Length 764 pages
Edition 1st Edition
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Author (1):
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Anghel Leonard Anghel Leonard
Author Profile Icon Anghel Leonard
Anghel Leonard
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Table of Contents (26) Chapters Close

Preface 1. Part 1: jOOQ as a Query Builder, SQL Executor, and Code Generator
2. Chapter 1: Starting jOOQ and Spring Boot FREE CHAPTER 3. Chapter 2: Customizing the jOOQ Level of Involvement 4. Part 2: jOOQ and Queries
5. Chapter 3: jOOQ Core Concepts 6. Chapter 4: Building a DAO Layer (Evolving the Generated DAO Layer) 7. Chapter 5: Tackling Different Kinds of SELECT, INSERT, UPDATE, DELETE, and MERGE 8. Chapter 6: Tackling Different Kinds of JOINs 9. Chapter 7: Types, Converters, and Bindings 10. Chapter 8: Fetching and Mapping 11. Part 3: jOOQ and More Queries
12. Chapter 9: CRUD, Transactions, and Locking 13. Chapter 10: Exporting, Batching, Bulking, and Loading 14. Chapter 11: jOOQ Keys 15. Chapter 12: Pagination and Dynamic Queries 16. Part 4: jOOQ and Advanced SQL
17. Chapter 13: Exploiting SQL Functions 18. Chapter 14: Derived Tables, CTEs, and Views 19. Chapter 15: Calling and Creating Stored Functions and Procedures 20. Chapter 16: Tackling Aliases and SQL Templating 21. Chapter 17: Multitenancy in jOOQ 22. Part 5: Fine-tuning jOOQ, Logging, and Testing
23. Chapter 18: jOOQ SPI (Providers and Listeners) 24. Chapter 19: Logging and Testing 25. Other Books You May Enjoy

Fetching the Oracle ROWID pseudo-column

If you are a fan of the Oracle database, then it is impossible not to have heard about the ROWID pseudo-column. However, as a quick reminder, the ROWID pseudo-column is associated with each row by Oracle, and its main goal is to return the address of the row. The information contained by ROWID can be used to locate a certain row. In jOOQ, we can refer to ROWID via the rowid() method.

For instance, the following statement inserts a new SALE and fetches the generated primary key and the ROWID:

ctx.insertInto(SALE, SALE.FISCAL_YEAR, SALE.SALE_, 
               SALE.EMPLOYEE_NUMBER, SALE.FISCAL_MONTH, 
               SALE.REVENUE_GROWTH)
   .values(2004, 2311.42, 1370L, 1, 0.0)
   .returningResult(SALE.SALE_ID, rowid())
   .fetchOne();  
...
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