Oracle unlocked and blocked accounts

Oracle unlocked and blocked accounts

(1) We have a management account in the last step when installing Oracle, which can unlock the account we need, but many people sometimes do not unlock it,

Next, we will study how to use the command line to unlock an account.

(2) start SQL Plus and log on to the SYSTEM account first (the password was created when you installed it yourself)

After the connection is successful, enter alter user scott account unlock;

(3) At this time, the scott account is successfully unlocked.

(4) log on and try again.

The connection is successful!