Comments on: Simple scripts http://jonathanlewis.wordpress.com/2009/12/18/simple-scripts/ Just another Oracle weblog Sat, 18 May 2013 11:04:10 +0000 hourly 1 http://wordpress.com/ By: Jonathan Lewis http://jonathanlewis.wordpress.com/2009/12/18/simple-scripts/#comment-35048 Mon, 21 Dec 2009 13:55:39 +0000 http://jonathanlewis.wordpress.com/?p=2636#comment-35048 Timur,
It depends so much on where you put the line-breaks. Here’s your second query formatted properly (i.e. MY way) ;)

select 
	value || '/' || 
	(select lower(instance_name) from v$instance) || 
	'_ora_' ||
	(
	select 	spid
	from	v$process
	where	addr = (
			select	paddr 
			from	v$session 
			where	sid = (
					select	sid 
					from	v$mystat 
					where	rownum = 1
				)
			)
	) || 
	'.trc'
from 
	v$parameter
where
	name = 'user_dump_dest'
;

Twenty-three lines !

]]> By: Timur Akhmadeev http://jonathanlewis.wordpress.com/2009/12/18/simple-scripts/#comment-35045 Mon, 21 Dec 2009 09:36:18 +0000 http://jonathanlewis.wordpress.com/?p=2636#comment-35045 I don’t call a script “simple” when it contains more then 10 lines ;)
Two scripts I use most heavily are getting an explain plan output & default trace file name:

set linesize 150 pagesize 999
col plan_table_output format a150
select * from table(dbms_xplan.display);

select value || '/' || (select lower(instance_name) from v$instance) || '_ora_' ||
       (select spid
          from v$process
         where addr = (select paddr from v$session where sid = (select sid from v$mystat where rownum = 1))) || '.trc'
  from v$parameter
 where name = 'user_dump_dest';

BTW, referencing dba_hist_* requires Diagnostic Pack license only; correct name of the Performance pack is “Oracle Tuning Pack”.

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