How to set up and manage Oracle passwords
Setting and managing Oracle passwords is a very important task in Oracle database management. A secure password policy protects your database from unauthorized access. This article will introduce how to set and manage passwords in the Oracle database, and provide some specific code examples to help readers better understand and apply.
1. Create a complex password policy
First, we need to set a password policy that is strong and meets security standards. Oracle database provides a password verification function, and you can set the complexity requirements of the password policy through parameters, such as length, uppercase and lowercase letters, special characters, etc. The following is an example showing how to set the password policy:
ALTER PROFILE default LIMIT COMPOSITE_LIMIT UNLIMITED PASSWORD_LIFE_TIME 90 PASSWORD_GRACE_TIME 5 PASSWORD_REUSE_TIME 365 PASSWORD_REUSE_MAX 10 FAILED_LOGIN_ATTEMPTS 3 PASSWORD_LOCK_TIME 1/24;
In the above code, we modified the default password policy through the ALTER PROFILE
command and set the maximum password usage time and password Grace time, password reuse time, maximum number of password reuses, number of failed login attempts, and password lockout time. You can adjust these parameters according to actual needs.
2. Create users and assign passwords
Next, we need to create users and assign passwords that comply with the password policy. You can use the following code to create an Oracle user:
CREATE USER myuser IDENTIFIED BY mypassword DEFAULT TABLESPACE users TEMPORARY TABLESPACE temp QUOTA UNLIMITED ON users;
In the above code, we created a user named myuser
and assigned the password mypassword
. Please note that when creating a user, you need to ensure that the password meets the requirements of the password policy, otherwise the creation will fail.
3. Modify password
If you need to modify the user's password, you can use the following code:
ALTER USER myuser IDENTIFIED BY mynewpassword;
This command will modify the user's myuser
The password is mynewpassword
. Likewise, new passwords need to comply with the password policy.
4. Manage password expiration
In order to enhance password security, we can set the password expiration time and force users to change passwords regularly. You can use the following code to set the password expiration time:
ALTER PROFILE default LIMIT PASSWORD_LIFE_TIME 60;
The above code will modify the password policy and set the password life cycle to 60 days. After this time, users will no longer be able to log in with the old password.
5. Management Password Lock
When a user enters incorrect passwords multiple times in a row, in order to prevent brute force attacks, we can set the password lock function to lock the user's password for a period of time. You can use the following code to set the password lock parameters:
ALTER PROFILE default LIMIT FAILED_LOGIN_ATTEMPTS 3 PASSWORD_LOCK_TIME 1/24;
The above code sets that when the user enters an incorrect password three times in a row, the password will be locked for one hour.
Conclusion
The above are some methods on how to set and manage passwords in Oracle database. By setting a strong password policy, creating passwords that meet the requirements, changing passwords in a timely manner, and managing password expiration and locking, the security of the database can be effectively protected. I hope the above content can be helpful to everyone, thank you for reading!
The above is the detailed content of How to set up and manage Oracle passwords. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



InnoDB's full-text search capabilities are very powerful, which can significantly improve database query efficiency and ability to process large amounts of text data. 1) InnoDB implements full-text search through inverted indexing, supporting basic and advanced search queries. 2) Use MATCH and AGAINST keywords to search, support Boolean mode and phrase search. 3) Optimization methods include using word segmentation technology, periodic rebuilding of indexes and adjusting cache size to improve performance and accuracy.

Full table scanning may be faster in MySQL than using indexes. Specific cases include: 1) the data volume is small; 2) when the query returns a large amount of data; 3) when the index column is not highly selective; 4) when the complex query. By analyzing query plans, optimizing indexes, avoiding over-index and regularly maintaining tables, you can make the best choices in practical applications.

Yes, MySQL can be installed on Windows 7, and although Microsoft has stopped supporting Windows 7, MySQL is still compatible with it. However, the following points should be noted during the installation process: Download the MySQL installer for Windows. Select the appropriate version of MySQL (community or enterprise). Select the appropriate installation directory and character set during the installation process. Set the root user password and keep it properly. Connect to the database for testing. Note the compatibility and security issues on Windows 7, and it is recommended to upgrade to a supported operating system.

The difference between clustered index and non-clustered index is: 1. Clustered index stores data rows in the index structure, which is suitable for querying by primary key and range. 2. The non-clustered index stores index key values and pointers to data rows, and is suitable for non-primary key column queries.

Article discusses popular MySQL GUI tools like MySQL Workbench and phpMyAdmin, comparing their features and suitability for beginners and advanced users.[159 characters]

Article discusses strategies for handling large datasets in MySQL, including partitioning, sharding, indexing, and query optimization.

MySQL supports four index types: B-Tree, Hash, Full-text, and Spatial. 1.B-Tree index is suitable for equal value search, range query and sorting. 2. Hash index is suitable for equal value searches, but does not support range query and sorting. 3. Full-text index is used for full-text search and is suitable for processing large amounts of text data. 4. Spatial index is used for geospatial data query and is suitable for GIS applications.

MySQL is an open source relational database management system. 1) Create database and tables: Use the CREATEDATABASE and CREATETABLE commands. 2) Basic operations: INSERT, UPDATE, DELETE and SELECT. 3) Advanced operations: JOIN, subquery and transaction processing. 4) Debugging skills: Check syntax, data type and permissions. 5) Optimization suggestions: Use indexes, avoid SELECT* and use transactions.
