Comments on: Bind Variable Peeking - Drives Me Nuts!

By: Marc Travaglini

Marc Travaglini — Wed, 17 Mar 2010 09:27:21 +0000

Thanks for an excellent article. I was able to use it and within 10 minutes find out exactly why one particular sql had started bringing the system to its knees. Interestingly, it was not because of bind variable peeking, but because of new statistics being gathered on some tables which changed the plan for this particluar sql. The above set of queries showed this very clearly, so they are even more useful than you give them credit for!

By: Michael Fontana

Michael Fontana — Wed, 02 Sep 2009 20:56:58 +0000

If you consider the fact that Oracle likely began work on the peeking “feature” back in 2000 or so when a VLDB was still considered to be 10G or more, they probably never really considered the full implications of it’s effects on database and table sizes of today.

By: Kerry Osborne’s Oracle Blog » Blog Archive Oracle 11g Adaptive Cursor Sharing (ACS) - Kerry Osborne’s Oracle Blog

Mon, 01 Jun 2009 15:06:59 +0000

[...] First take on observations of ACS on 11.1.0.7 [...]

By: osborne

osborne — Tue, 19 May 2009 04:39:59 +0000

Jonathan Lewis’ post has the best and simplest description of this problem and it’s solution that I’ve ever seen here. And it’s his “Philosophy 1″ - must be pretty high on his list as well.

Kerry

By: Daniel

Daniel — Sat, 25 Apr 2009 05:23:45 +0000

Excellent article.
i was reading about histograms on richard foote blog & searched for “bind variable peekings & histograms” and found your article.

Regards!

By: Bind Variable Peeking, un bel post riassuntivo « Oracle and other

Bind Variable Peeking, un bel post riassuntivo « Oracle and other — Thu, 02 Apr 2009 09:56:23 +0000

[...] Peeking, un bel post riassuntivo Pubblicato il Giovedì 2 Aprile 2009 di Cristian Cudizio Kerry Osborne, recente ingresso del mio blogroll, nonché del mio feed reader, alcuni giorni fa ha pubblicato sul [...]

By: Mohamed

Mohamed — Mon, 30 Mar 2009 18:59:34 +0000

You may want to add a reference to the following block post
http://optimizermagic.blogspot.com/2007/12/why-are-there-more-cursors-in-11g-for.html