The password of SYS and system is missing from the Oracle database.

DeleteDivisionOriginal PasswordCodeFile%/Oraclehome/Databse/pwd % oracle_sid %. ora%

Then re-establish the passwordCodeFile

Start - > RUN - > 〉 CMD-> Cd/

C> orapwd file = E:/Oracle/ora92/database/% oracle_sid %. ora Password = *** entries = 5
Restart the server.ServicesOracleservicestudy

Pass Sys Level user Modification System User Password:

Alter user system identified by password

 

Possible promptSystemAccount locked

Alter user system account unlock