usage of updlock -- sql server programming

sql server programming : usage of updlock

Hassan
12/19/2004 8:43:42 PM

I see a lot of our sprocs developed by developers have select statement with
the updlock. Why would they be doing that ? I know you might be wondering
why I cant ask them directly but thought I not embarass myself and ask you
guys.. Thanks

David Gugick
12/20/2004 12:34:13 AM

[quoted text, click to view]

It's sometimes used when updating "Next Key Value" type tables to keep
others from updating. Of course, an update can do the same thing and
also keep readers away.

Can you give an example of where it is used.

--
David Gugick
Imceda Software
www.imceda.com

Huiyong Lau
12/20/2004 4:26:00 PM

Presume the select statement with updlock hint was used within a explicit
transaction, otherwise it doesnt make sense. It prevents others to modify
the same records, but allow reading still.

Regards,
Huiyong

[quoted text, click to view]

Got something to say? Click here to post a reply to this thread.

Don't see what you're looking for? Try a search.

View other messages about sql server programming

View Other Months
January 2003
March 2003
April 2003
May 2003
June 2003
July 2003
August 2003
September 2003
October 2003
November 2003
December 2003
January 2004
February 2004
March 2004
April 2004
May 2004
June 2004
July 2004
August 2004
September 2004
October 2004
November 2004
December 2004
January 2005
February 2005
March 2005
April 2005
May 2005
June 2005
July 2005
August 2005
September 2005
October 2005
November 2005
December 2005
January 2006
February 2006
March 2006
April 2006
May 2006
June 2006
July 2006
August 2006
September 2006
October 2006
November 2006
December 2006
January 2007
February 2007
March 2007
April 2007
May 2007
June 2007
July 2007
August 2007
September 2007
October 2007
November 2007
April 2008
August 2008

home · blog · groups

Questions? Comments? Contact the dn