Oracle Database 12C Security

1. Unified Auditing: Oracle Database 12c introduced Unified Auditing, which consolidates all audit records into a single audit trail, making it easier to manage and analyze audit data. It provides comprehensive auditing capabilities to track and monitor user activities, database operations, and security-related events.

2. Privilege Analysis: Oracle Database 12c includes Privilege Analysis, which enables organizations to identify and analyze privileges granted to database users and roles. This helps administrators understand the actual privileges required by users, facilitating the implementation of least privilege principles and enhancing security.

3. Database Vault: Database Vault is an advanced security feature in Oracle Database 12c that provides additional layers of protection by restricting access to sensitive data and database operations. It allows administrators to enforce fine-grained access controls, privileged user management, and separation of duties to prevent unauthorized access and insider threats.

4. Transparent Data Encryption (TDE): TDE is a data encryption feature in Oracle Database 12c that encrypts data stored in database files, tablespaces, and backups to protect it from unauthorized access. TDE helps organizations comply with data privacy regulations and safeguard sensitive information against theft or exposure.

5. Data Redaction: Data Redaction is a security feature that dynamically masks sensitive data in query results based on predefined security policies. It allows organizations to protect confidential information, such as credit card numbers or social security numbers, from unauthorized disclosure while still allowing authorized users to access the data for legitimate purposes.

Before learning Oracle Database 12c Security, it's beneficial to have the following skills:

1. Database Fundamentals: Understand basic database concepts, including tables, queries, and database management systems (DBMS).

2. SQL Knowledge: Proficiency in writing and executing SQL queries to retrieve, manipulate, and manage data in Oracle databases.

3. Oracle Database Administration: Familiarity with Oracle database administration tasks, such as user management, database configuration, and performance tuning.

4. Security Concepts: Knowledge of fundamental security concepts, including authentication, authorization, encryption, auditing, and compliance.

5. Network Security: Understanding of network security principles, protocols, and technologies to protect database communication channels.

By learning Oracle Database 12c Security, you gain the following skills:

1. Access Control: Ability to manage user access privileges, roles, and permissions within the Oracle Database.

2. Data Encryption: Knowledge of encrypting sensitive data to protect confidentiality and prevent unauthorized access.

3. Auditing: Understanding of auditing capabilities in Oracle Database for monitoring user activities and detecting security violations.

4. Authentication Methods: Proficiency in configuring and managing various authentication methods, such as password-based authentication, Kerberos, and SSL/TLS.

5. Authorization Policies: Skill to define and enforce authorization policies to control access to database objects based on user roles and privileges.