explain plan

In order to show explain plan which command I can use for select * from dual...
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Guy Hengel [angelIII / a3]Billing EngineerCommented:
select * from plan_table

at least, I presume that is what you are looking for
You can also use SQL Developer for free,
run you query and hit the explain plan button on the worksheet


Check if plan_table  exist. if not create it by running the sql $ORACLE_HOME/rdbms/admin/utlxplan.sql
set autotrace on. then run your query.
slightwv (䄆 Netminder) Commented:
>>Check if plan_table  exist. if not create

In newer versions of Oracle it is not a Global Temporary Table.  You no longer need to create your own copy.

>>for select * from dual

I prefer:

select * from table(dbms_xplan.display);

First you need to explain the query then select the output from plan table.
SQL> explain plan for select sysdate from dual;
SQL> select * from table (dbms_xplan.display);
Plan hash value: 1388734953

| Id  | Operation        | Name | Rows  | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT |      |     1 |     2   (0)| 00:00:01 |
|   1 |  FAST DUAL       |      |     1 |     2   (0)| 00:00:01 |


Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Oracle Database

From novice to tech pro — start learning today.