Call now: (800) 766-1884  



 Home


 SQL Server Tips
 SQL Server Training

 SQL Server Consulting
 SQL Server Support
 SQL Server Remote DBA



 Articles
 Services
 SQL Server Scripts
 Scripts Menu



 

 

 

   
  SQL Server Tips by Gama and Naughter

Outer right

An outer right join is similar to the outer left but returning all the rows from the table on the right instead of the left.

Example: To display all titles, even the ones with no publishers in the publisher's database, in this situation the publisher will be NULL.

SELECT dbo.publishers.pub_name, dbo.titles.title
FROM dbo.publishers RIGHT OUTER JOIN
dbo.titles ON dbo.publishers.pub_id = dbo.titles.pub_id


Does it mean that an outer right join will become an outer left join if the tables switch places around the JOIN clause? Yes, it is that simple for joins between two tables but it gets more complicated if more tables are involved. The next example proves that an outer right join and an outer left join return identical results by switching the places of the joined tables:

SELECT dbo.publishers.pub_name, dbo.titles.title
FROM dbo.titles LEFT OUTER JOIN
dbo.publishers ON dbo.publishers.pub_id = dbo.titles.pub_id


The above book excerpt is from:

Super SQL Server Systems
Turbocharge Database Performance with C++ External Procedures

ISBN: 0-9761573-2-2
Joseph Gama, P. J. Naughter

 http://www.rampant-books.com/book_2005_2_sql_server_external_procedures.htm  

 

Burleson Consulting Remote DB Administration


 

 


 

 

 

 

 
Burleson is the America's Team

Note: The pages on this site were created as a support and training reference for use by our staff of DBA consultants.  If you find it confusing, please exit this page.

Errata?  SQL Server technology is changing and we strive to update our SQL Server 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
SQL Server database support

 

Copyright 1996 -  2013 by Vaaltech Web Services. All rights reserved.

Hit Counter