Comments on: Oracle Parameter Files http://halfcooked.com/blog/2008/12/09/oracle-parameter-files/ Wherein I write some stuff that you may like to read. Or not, its up to you really. Fri, 11 Nov 2011 18:30:53 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Alex Willmer http://halfcooked.com/blog/2008/12/09/oracle-parameter-files/comment-page-1/#comment-35787 Alex Willmer Tue, 09 Dec 2008 20:45:06 +0000 http://halfcooked.com/blog/?p=91#comment-35787 A useful trick for spfiles. Using ALTER SYSTEM SET ... SCOPE=spfile without care can result in an instance that won't open, making further ALTER SYSTEM statements to update the spfile impossible. Catch 22. A pfile can be generated from an spfile, manually. Copy spfile.ora to init.ora. Then open it in a text editor and remove non-ascii characters from the start and end of the file. Edit the erroneous value(s). Start the instance manually, with STARTUP PFILE='path/to/init.ora'. You can then issue CREATE SPFILE FROM PFILE='path/to/init.ora' and restart the instance normally. Alex A useful trick for spfiles. Using ALTER SYSTEM SET … SCOPE=spfile without care can result in an instance that won’t open, making further ALTER SYSTEM statements to update the spfile impossible. Catch 22.

A pfile can be generated from an spfile, manually. Copy spfile.ora to init.ora. Then open it in a text editor and remove non-ascii characters from the start and end of the file. Edit the erroneous value(s). Start the instance manually, with STARTUP PFILE=’path/to/init.ora’. You can then issue CREATE SPFILE FROM PFILE=’path/to/init.ora’ and restart the instance normally.

Alex

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