Oracle XE SYSTEM account locked: unlock the SYSTEM user
In some scenarios the SYSTEM user becomes locked after lots of trial of username and password. At that time you can do the following to unlock the same Nvaigate to the SQL plus containing folder and run the following in the cmd propmt window opened from that location > SQLPLUS SYS\ORACLE AS SYSDBA Run the following command: > ALTER USER SYSTEM ACCOUNT UNLOCK; OR > ALTER USER SYSTEM IDENTIFIED BY <any password>; Test the connection as follows: > CONNECT HR/HR