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So using dynamic SQL, we can construct the following example to recreate the user with a password that we do not know: SQL> SELECT 'ALTER USER '|| name ||' IDENTIFIED BY VALUES '''|| spare4 ||';'|| password ||''';' FROM sys.user$ WHERE name='SIMON';
18 de fev. de 2016 · ALTER USER bob IDENTIFIED BY VALUES ‘asdf1234%^&*qwerty’; I never needed to know the user’s password to set it back to what it was so long as I knew the hash value was. Yesterday I found some information where people were receiving the following error when attempting to set a password this way in 12c:
- Using Oracle Alter User Statement to Change The Password For A User
- Using Oracle Alter User Statement to Lock/Unlock A User
- Using Oracle Alter User Statement to Set The User’s Password Expired
- Using Oracle Alter User Statement to Set The Default Profile For A User
- Using Oracle Alter User Statement to Set Default Roles For A User
The following example uses the ALTER USER statement to change the password for the user dolphin: Log in to the Oracle Database using the dolphin user: The user dolphin should be able to authenticate to the Oracle Database using the new password xyz123
This example uses the ALTER USER statement to lock the user dolphin: If you use the user dolphinto log in to the Oracle Database, you should see a message indicating that the user is locked: To unlock the user dolphin, you use the following statement: Now, the user dolphinshould be able to log in to the Oracle Database.
To set the password of the user dolphinexpired, you use the following statement: When you use the user dolphinto log in to the database, Oracle issues a message indicating that the password has expired and requests for the password change as follows:
This statement returns the profile of the user dolphin: When you create a new user without specifying a profile, Oracle will assign the DEFAULTprofile to the user. Let’s create a new user profile called ocean: and assign it to the user dolphin: Now, the default profile of the user dolphin is ocean.
Currently, the user dolphinhas no assigned roles as shown in the output of the following query when executing from the dolphin’s session: First, create a new role called rescue from the user OT‘s session: Second, grant this role to dolphin: Third, use the user dolphin to log in to the Oracle Database. The default role of the user dolphin is rescuen...
26 de mar. de 2020 · SQL> alter user pete identified by values 'LOCKED'; User altered. SQL> He said when he does this it creates a value in SYS.USER$.PASSWORD that can never be hashed to a real hex value so the account cannot be logged into if it is open. He asked if his thinking is correct or flawed.
10 de mar. de 2017 · 1) alter user identified by "<password>"; 2) alter user identified by values ""; With #1, Oracle generates the hash, and generates a different hash even if the password is exactly the same. With #2, since we are copying the hash, the hash is the same for the same password.
ALTER USER app_user1 IDENTIFIED GLOBALLY AS 'CN=tom,O=oracle,C=US'; The following statement causes user sidney 's password to expire: If you cause a database user's password to expire with PASSWORD EXPIRE , then the user (or the DBA) must change the password before attempting to log in to the database following the expiration.
ALTER USER CURRENT_USER() IDENTIFIED BY 'mariadb'; Always outputs mysql_native_password | | alter user root@'%' identified by 'mariadb'; Job works and the root's identified by new password. mysql_native_password | *54958E764C
