cq9跳高高2大奖视频

書名： Oracle Database 12c Security Cookbook
作者名： Zoran Pavlovi? Maja Veselica
本章字數： 333字
更新時間： 2021-07-02 16:43:12

Changing a user's password

Changing a user's password is easy. You will practice it by changing passwords for several users in this recipe.

Getting ready

To complete this recipe, you'll need an existing user who has alter user privilege (you may use OS-authenticated user who has the DBA role) and other existing users (for example, jessica and tom).

How to do it...

Connect to the database as a user who has alter user privilege:
```
       $ sqlplus / 
```
Change the password for user jessica:
```
       SQL> password jessica; 
```
Enter a new password (for example, oracle_2) on a command line (note that typing will not be visible in the command line):
```
       New password: 
```
Retype the new password (for example, oracle_2) on the command line (note that typing will not be visible in the command line):
```
      Retype new password: 
```
Connect to the database as any user (for example, tom, to change their own password):
```
       $ sqlplus tom/"Qax7UnP!123*" 
```
Change the password using the following code:
```
       SQL> password 
```
Enter the old password (for example, Qax7UnP!123*) on the command line (note that typing will not be visible on the command line):
```
      Old password: 
```
Enter the new password (for example, oracle_123) on the command line (note that typing will not be visible on the command line):
```
       New password: 
```
Retype the new password (for example, oracle_123) on the command line (note that typing will not be visible on the command line):
```
       Retype new password: 
```

How it works...

In step 1, you used OS authentication to connect to the database.

In steps 2 through 4, a privileged user changed jessica's password, where in steps 6 through 9, the user tom changed his own password.

There's more...

There is another way to change the user's password using the alter user statement as follows:

SQL> alter user jessica identified by oracle_2;

Tip

This approach is not recommended because password remains in the command-line history.

官术网_书友最值得收藏!

Changing a user's password

Getting ready

How to do it...

How it works...

There's more...

Tip

See also

官术网_书友最值得收藏!

Oracle Database 12c Security Cookbook

Changing a user's password

Getting ready

How to do it...

How it works...

There's more...

Tip

See also