Explain plan and Autotrace on
8i
Can somebody please tell me how
to get autotrace working on 8i? I tried to run the sql script found in
%ORACLE_HOME%/sqlplus/admin/plustrce.sql but alot of the tables do not
exist.
I'm also having a hard time with
the explain plan.
Bryan
First check the following:
*PLAN_TABLE table in the user schema
ur logging in.
sql > desc PLAN_TABLE - If it exists
then u can run the explain plan for the query.
sql > desc PLAN_TABLE - If it doesn't
exists then u need to create one.
In order to obtain the script for
creating the table u can look in $ORACLE_HOME/rdbms/admin/utlxplan.sql
file
or here is the script .....
*************
create table PLAN_TABLE (
statement_id varchar2(30),
timestamp date,
remarks varchar2(80),
operation varchar2(30),
options varchar2(30),
object_node varchar2(128),
object_owner varchar2(30),
object_name varchar2(30),
object_instance numeric,
object_type varchar2(30),
optimizer varchar2(255),
search_columns number,
id numeric,
parent_id numeric,
position numeric,
cost numeric,
cardinality numeric,
bytes numeric,
other_tag varchar2(255),
partition_start varchar2(255),
partition_stop varchar2(255),
partition_id numeric,
other long,
distribution varchar2(30));
*************
* If ur logging in as 'SYSTEM'
or 'SYS' user the table will be already available as most of the DBA's
activate it as soon the db is created.
* In order to use the Explain Plan
u first need to have the PLAN_TABLE then once its there then u need to
set the autotrace ON ..in order to activate this feature do this.....
sql > set AUTOTRACE ON;
Now ur all set to run the explain
on any query.
In order to de-activate the AUTOTRACE
do this...
sql > set AUTOTRACE OFF.
U can also use....additional to
that ...
sql > set TIME ON
sql > set TIMINING ON
But remember PLAN_TABLE must EXISTS
in the user ur loggin in as or else u get table not found error.
Also u can use OPTIMIZER features
like RULE and COST based modes for better performance.
HTH
You solve my problem! I didn't have the table created
under the user.
Bryan
Have a Oracle Question
Do
you have an Oracle Question?
Oracle Books
Oracle
Certification, Database Administration, SQL, Application, Programming Reference
Books
Oracle Application
Oracle
Application Hints and Tips
Oracle Home
Oracle
Database, SQL, Application, Programming Tips
All the site contents are Copyright © www.erpgreat.com
and the content authors. All rights reserved.
All product names are trademarks of their respective
companies.
The site www.erpgreat.com is not affiliated with or endorsed
by any company listed at this site.
Every effort is made to ensure the content integrity.
Information used on this site is at your own risk.
The content on this site may not be reproduced
or redistributed without the express written permission of
www.erpgreat.com or the content authors.
|