1) Log in to your Oracle database using administrator privileges:
cmd> sqlplus / as sysdba
or
cmd> sqlplus system/{systemPassword}@{OracleSID}
2) Unlock your account with the following command:
sql> alter user {yourDbUser} account unlock;
3) It is still forbidden to repeat account locks on the SQL * Plus command line:
sql> ALTER PROFILE "DEFAULT" LIMIT PASSWORD_LIFE_TIME UNLIMITED;
sql> ALTER PROFILE "DEFAULT" LIMIT FAILED_LOGIN_ATTEMPTS UNLIMITED;
Edit Comment
The above instructions should solve your problem. I am sending an additional command that I found related to this topic that you can try (I'm not sure if this is the solution):
sql> grant connect, resource to {yourDbUser};
You can also check the status of other blocked users in your database . Your tool may be trying to contact another user who, in addition to the one you are using, still has this problem.
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