Скачать или смотреть How to Change an Oracle Database User Password | SQL Plus, SQLcl, & SQL Developer

Change your Oracle user passwords with confidence! This step-by-step tutorial walks you through the complete process of changing a password for any user in an Oracle database. Whether you're a DBA performing routine maintenance or a developer managing your own schema, this is a fundamental and critical security skill.

We'll cover the standard "ALTER USER" SQL command and demonstrate how to execute it in the most common Oracle environment:
SQL Developer (the popular graphical GUI)

The commands are same for below :
SQL Plus (the classic command-line interface)
SQLcl (the modern command-line interface)


In this video, you will learn:
The essential SQL syntax for the `ALTER USER` command.
How to connect to your database using different tools.
How to change another user's password (requires DBA privileges).
How to change your own password.
Best practices for creating strong, secure passwords.
What to do if you encounter the "ORA-28003: password verification failed" error.


Code from the video:

Basic Syntax:
ALTER USER username IDENTIFIED BY new_password;

To expire a password forcing a change at next login:
ALTER USER username IDENTIFIED BY new_password PASSWORD EXPIRE;

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(Disclaimer: This video is for educational purposes. Always follow your organization's security policies when managing user accounts and passwords.)