Re: Script to overcome ORA-54 during DDL

From: Connor McDonald <hamcdc_at_yahoo.co.uk>
Date: Sat, 26 Jun 2004 03:46:50 +0100 (BST)
Message-ID: <20040626024650.6646.qmail@web25202.mail.ukl.yahoo.com>

After a thorough and comprehensive tuning review...a revised version is below..

create or replace procedure do_ddl(m_sql varchar2) as
 in_use exception ;
 pragma exception_init(in_use, -54);
begin
 while true loop
  begin
   execute immediate m_sql;
   exit;
  exception
   when in_use then null;
-- when others then raise;
  end;
  dbms_lock.sleep(0.01);
 end loop;
end;
/

:-)

• Jonathan Lewis <jonathan_at_jlcomp.demon.co.uk> wrote: >
  > I thought it was pretty good for five minutes -
  > and I did leave in a CPU-saving sleep.
  > The timeout problem is left as an exercise
  > for the reader.
  >
  > Held cursors shouldn't be a problem - that's
  > why library cache locks are called breakable
  > parse locks. ("should" and "won't" are, of
  > course, two different words).
  >
  

  ---

Connor McDonald
Co-author: "Mastering Oracle PL/SQL - Practical Solutions" ISBN: 1590592174 web: http://www.oracledba.co.uk
web: http://www.oaktable.net
email: connor_mcdonald_at_yahoo.com

Coming Soon! "Oracle Insight - Tales of the OakTable"

"GIVE a man a fish and he will eat for a day. But TEACH him how to fish, and...he will sit in a boat and drink beer all day"

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Received on Fri Jun 25 2004 - 21:43:32 CDT