Several main user types in Oracle database

Oracle is the world's leading provider of enterprise-level database solutions. In order to meet the needs of different users, Oracle provides multiple user types. In this article, we will introduce several main user types in Oracle database and their roles.

1. System Administrator

The system administrator is one of the most important users in the Oracle database. They are responsible for managing the entire Oracle environment, including installation, upgrades, backup and recovery of databases. In addition, system administrators are responsible for authenticating access to protected data to ensure that only authorized users have access to sensitive data.

System administrators usually have a variety of operation permissions, such as creating, modifying and deleting users, and granting or revoking permissions to other users. System administrators are also responsible for managing various configuration settings on the database server to ensure that the system runs efficiently.

2. Database Administrator

The Database Administrator is responsible for supervising and overseeing access to the Oracle database instance by applications and other users. Their responsibilities include:

• Manage the size and performance of databases and table spaces
• Monitor the security and integrity of the database
• Create and manage database accounts and permissions
• Ensuring the effectiveness of backup and recovery strategies

Database administrators often involve communication and coordination with application developers and system administrators to ensure database configuration and performance are consistent with users match the needs.

3. Application User

Application user is one of the most common user types in Oracle database. These users can access the database through predefined APIs or GUIs to perform tasks such as querying, updating, inserting, and deleting data.

Application users' permissions are controlled in a very fine-grained hierarchy, controlling the specific lists of tables, views, and functions they can access. Only authorized users can access this information and perform tasks related to it. This ensures that data and operations with restricted access can only be performed by authorized users.

4. Database Developer

Database Developer utilizes Oracle Database, builds and maintains other applications that coexist with Oracle Database, and performs batch processing jobs. These individuals are able to write SQL and PL/SQL code to implement various functions and interact with the application user interface.

Oracle database developers typically complete their tasks through SQL developer tools, which provide advanced database access capabilities. These tools provide developers with APIs to access databases, allowing them to write code and debug programs more efficiently.

Summary

The above are some of the main user types in Oracle database. As an Oracle database manager, developer, user or administrator, you must understand the role of each user type in order to better manage and control database access to improve work efficiency and ensure data security and integrity.

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