Call now: 252-767-6166  
Oracle Training Oracle Support Development Oracle Apps

 
 Home
 E-mail Us
 Oracle Articles
New Oracle Articles


 Oracle Training
 Oracle Tips

 Oracle Forum
 Class Catalog


 Remote DBA
 Oracle Tuning
 Emergency 911
 RAC Support
 Apps Support
 Analysis
 Design
 Implementation
 Oracle Support


 SQL Tuning
 Security

 Oracle UNIX
 Oracle Linux
 Monitoring
 Remote s
upport
 Remote plans
 Remote
services
 Application Server

 Applications
 Oracle Forms
 Oracle Portal
 App Upgrades
 SQL Server
 Oracle Concepts
 Software Support

 Remote S
upport  
 Development  

 Implementation


 Consulting Staff
 Consulting Prices
 Help Wanted!

 


 Oracle Posters
 Oracle Books

 Oracle Scripts
 Ion
 Excel-DB  

Don Burleson Blog 


 

 

 


 

 

 

 
 

_convert_set_to_join tips

Oracle Database Tips by Donald Burleson

Question:  How do I use the _convert_set_to_join hidden parameter?

Answer:  Oracle Corporation's developer Vadim Tropashko has some interesting notes on using _convert_set_to_join for tuning Oracle SQL queries that compare the contents of two tables, showing several SQL solutions and their performance within the Oracle cost-based optimizer. 

Vadim Tropashko's  is the author of "SQL Design Patterns: The Expert Guide to SQL Programming", the definitive reference for SQL design patterns, a critical knowledge area for any Oracle developer.

Vadim also shows a great example of using the hidden parameter _convert_set_to_join to improve SQL execution speed for queries that find the semantic difference between two tables, and he shows how to compare the rows and columns of two tables with Oracle SQL syntax. 

(Note: Hidden parameters are extremely powerful and you should always thoroughly test all use of hidden SQL tuning parameters and only use hidden parms like _coinvert_set_to_join at the direction of Oracle technical support).

Vadim Tropashko's new book "SQL Design Patterns: The Expert Guide to SQL Programming", is the very first book to apply the mathematical foundation of SQL in-terms of design patterns, a must-own book for any professional SQL developer.

For more on advanced Oracle SQL tuning, see Vadim Tropashko's  book "SQL Design Patterns: The Expert Guide to SQL Programming"

 
Get the Complete
Oracle SQL Tuning Information 

The landmark book "Advanced Oracle SQL Tuning  The Definitive Reference"  is filled with valuable information on Oracle SQL Tuning. This book includes scripts and tools to hypercharge Oracle 11g performance and you can buy it for 30% off directly from the publisher.


 

 

��  
 
 
Oracle Training at Sea
 
 
 
 
oracle dba poster
 

 
Follow us on Twitter 
 
Oracle performance tuning software 
 
Oracle Linux poster
 
 
 

 

Burleson is the American Team

Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals.  Feel free to ask questions on our Oracle forum.

Verify experience! Anyone considering using the services of an Oracle support expert should independently investigate their credentials and experience, and not rely on advertisements and self-proclaimed expertise. All legitimate Oracle experts publish their Oracle qualifications.

Errata?  Oracle technology is changing and we strive to update our BC Oracle support information.  If you find an error or have a suggestion for improving our content, we would appreciate your feedback.  Just  e-mail:  

and include the URL for the page.


                    









Burleson Consulting

The Oracle of Database Support

Oracle Performance Tuning

Remote DBA Services


 

Copyright © 1996 -  2017

All rights reserved by Burleson

Oracle ® is the registered trademark of Oracle Corporation.

Remote Emergency Support provided by Conversational