ORA-28000: the account is locked error getting frequently

Question

I am getting the error :

 ORA-28000: the account is locked 

Is this a DB Issue? When I unlock user account using the comma

Answer 1

Login to SQL Plus client on the oracle database server machine.

enter user-name: system

enter password: password [Only if, if you have not changed your default password while DB installation]

press enter. after which, you will be seeing the connection status.

Now,

SQL> ALTER USER [USER_NAME] ACCOUNT UNLOCK;

press enter.

you will be seeing message: user altered.

Now try login with the user name on db client[sqldeveloper].