Comments on: NVL2 in Oracle http://awads.net/wp/2005/06/30/nvl2-in-oracle/ News, views, tips and tricks on Oracle and other fun stuff Tue, 24 Jan 2012 20:49:08 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: matelot http://awads.net/wp/2005/06/30/nvl2-in-oracle/comment-page-1/#comment-50318 matelot Mon, 05 Feb 2007 21:56:38 +0000 http://awads.net/wp/?p=48#comment-50318 <p>heheh no loves for PL/SQL I guess</p> <p>http://groups.google.com/group/comp.databases.oracle.server/msg/165d24ffccb982e7?dmode=source&hl=en</p> heheh no loves for PL/SQL I guess

http://groups.google.com/group/comp.databases.oracle.server/msg/165d24ffccb982e7?dmode=source&hl=en

]]> By: Eddie http://awads.net/wp/2005/06/30/nvl2-in-oracle/comment-page-1/#comment-18 Eddie Mon, 04 Jul 2005 19:53:43 +0000 http://awads.net/wp/?p=48#comment-18 <p>Robert, Thanks for the extra tips and links. I see you are a fan of <a href="http://tkyte.blogspot.com/" rel="nofollow">Tom Kyte</a>. I am too. I have learnt a lot from him, and still learning...</p> <p>Cheers!</p> Robert, Thanks for the extra tips and links. I see you are a fan of Tom Kyte. I am too. I have learnt a lot from him, and still learning…

Cheers!

]]> By: Robert Vollman http://awads.net/wp/2005/06/30/nvl2-in-oracle/comment-page-1/#comment-17 Robert Vollman Mon, 04 Jul 2005 18:34:06 +0000 http://awads.net/wp/?p=48#comment-17 <p>You can also use DECODE, which (as an exception to the normal rule) will say that NULL = NULL</p> <p>DECODE(COMM, NULL, 'SAL', 'SAL & COMM')</p> <p>http://thinkoracle.blogspot.com/2005/06/decode.html</p> <p>But, keep in mind that NVL and NVL2 seem to have a performance hit over the more verbose manual NULL check.</p> <p>http://thinkoracle.blogspot.com/2005/06/nulls-in-oracle.html</p> <p>orig article: http://www.oracledba.co.uk/tips/plsql_nvl_costs.htm discussion: http://www.phpbbserver.com/phpbb/viewtopic.php?t=220&mforum=dizwellforum</p> <p>Cheers, Robert</p> You can also use DECODE, which (as an exception to the normal rule) will say that NULL = NULL

DECODE(COMM, NULL, ‘SAL’, ‘SAL & COMM’)

http://thinkoracle.blogspot.com/2005/06/decode.html

But, keep in mind that NVL and NVL2 seem to have a performance hit over the more verbose manual NULL check.

http://thinkoracle.blogspot.com/2005/06/nulls-in-oracle.html

orig article: http://www.oracledba.co.uk/tips/plsql_nvl_costs.htm discussion: http://www.phpbbserver.com/phpbb/viewtopic.php?t=220&mforum=dizwellforum

Cheers, Robert

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