Reply to Re: can you tell me why this causes a deadlock?

Your name:

Reply:


Posted by Erland Sommarskog on 02/05/06 00:50

Joe Weinstein (joeNOSPAM@bea.com) writes:
> Ok. Thanks. However, by default, with SQL2005, why is this a deadlock?

I didn't touch that part, as it was already explained in other post, but
in case you missed it.

First both processes inserts a row into the table, and maintain a lock
as the INSERTs are not committed. Next, they try to read the entire table.
But do that, session 1 needs to access the row inserted by session 2
and vice versa.




--
Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se

Books Online for SQL Server 2005 at
http://www.microsoft.com/technet/prodtechnol/sql/2005/downloads/books.mspx
Books Online for SQL Server 2000 at
http://www.microsoft.com/sql/prodinfo/previousversions/books.mspx

[Back to original message]


Удаленная работа для программистов  •  Как заработать на Google AdSense  •  England, UK  •  статьи на английском  •  PHP MySQL CMS Apache Oscommerce  •  Online Business Knowledge Base  •  DVD MP3 AVI MP4 players codecs conversion help
Home  •  Search  •  Site Map  •  Set as Homepage  •  Add to Favourites

Copyright © 2005-2006 Powered by Custom PHP Programming

Сайт изготовлен в Студии Валентина Петручека
изготовление и поддержка веб-сайтов, разработка программного обеспечения, поисковая оптимизация