In Oracle 12c, the "Show All Users" functionality is part of the broader enhancements made to user management and security within the database. Historically, Oracle databases have allowed administrators to view user information through various system views and data dictionary tables. With the introduction of Oracle 12c, which brought significant changes such as multitenant architecture, the way user information is accessed and displayed evolved. Administrators can now utilize the `DBA_USERS` view to retrieve comprehensive details about all users in a container database (CDB) or pluggable database (PDB). This capability not only streamlines user management but also enhances security by allowing for better oversight of user privileges and roles across different environments. **Brief Answer:** In Oracle 12c, the "Show All Users" feature allows administrators to access user information via the `DBA_USERS` view, facilitating improved user management and security in both container and pluggable databases.
Displaying all user information in Oracle 12c can offer several advantages and disadvantages. On the positive side, having comprehensive visibility into user data can enhance administrative oversight, facilitate auditing processes, and improve security by allowing for better monitoring of user activities and access patterns. It can also streamline troubleshooting and performance tuning by providing insights into user behavior and resource consumption. However, the disadvantages include potential privacy concerns, as exposing sensitive user information could lead to unauthorized access or data breaches. Additionally, it may result in information overload for administrators, making it challenging to identify critical issues amidst a vast amount of data. Balancing transparency with security is crucial when deciding whether to show all user information. **Brief Answer:** Displaying all user info in Oracle 12c enhances oversight and security but raises privacy concerns and may overwhelm administrators with excessive data.
Displaying all user information in Oracle 12c presents several challenges, primarily related to security, performance, and data management. First, exposing comprehensive user details can lead to potential security vulnerabilities, as sensitive information may be accessible to unauthorized users. Additionally, querying extensive user data can strain system resources, particularly in large databases with numerous users, potentially affecting overall database performance. Furthermore, managing user privileges and ensuring compliance with data protection regulations adds complexity to the task. Administrators must balance the need for transparency with the imperative of safeguarding sensitive information while maintaining optimal system performance. **Brief Answer:** The challenges of showing all user info in Oracle 12c include security risks from exposing sensitive data, performance issues due to resource strain on large databases, and complexities in managing user privileges and regulatory compliance.
Finding talent or assistance regarding the display of all user information in Oracle 12c can be crucial for database administrators and developers who need to manage user access and permissions effectively. In Oracle 12c, you can retrieve comprehensive details about users by querying the data dictionary views such as `DBA_USERS`, `ALL_USERS`, or `USER_USERS`. These views provide essential information like usernames, account statuses, default tablespaces, and profile settings. For those seeking help, online forums, Oracle documentation, and community resources can offer valuable insights and solutions tailored to specific needs. **Brief Answer:** To show all user info in Oracle 12c, query the `DBA_USERS` view using SQL: `SELECT * FROM DBA_USERS;`. This will return detailed information about all users in the database.
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