understanding on how oracle logs in sys user for the command SQL> connect system/orcl@pdborcl1 as sysdba

Hi Team,

I want to understand how oracle internally treats the below credentials as sys and logs into the database as sys user.

SQL> connect system/orcl@pdborcl1 as sysdba;
Connected.
SQL> show user;
USER is "SYS"

What is the difference between logging as sqlplus / as sysdba and the above command. How  oracle internally logs them as sys user?
sam_2012Asked:
Who is Participating?

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

x
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.

slightwv (䄆 Netminder) Commented:
I'm not sure I'm understanding what you are asking.

sysdba is a very special system privilege.  Depending on how you have your system configured, you don't even need a valid username and password on the database server.  Assuming you don't have a fred user in your database:
connect fred/flintstone as sysdba;

You still connect as SYS.  The "/" uses OS authentication to see if the OS user has permission to connect as SYSDBA.

I would read the online docs for the specifics:
https://docs.oracle.com/database/121/ADMQS/GUID-2033E766-8FE6-4FBA-97E0-2607B083FA2C.htm#ADMQS12004
0

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
sam_2012Author Commented:
awesome
0
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
Databases

From novice to tech pro — start learning today.