The Oracle database is a relational database management system (RDBMS). This RDMS implements functions like polymorphism, user data types, and inheritance in an object-oriented manner. This is done through the object-relational database management system (ORDBMS).
A database management systems (DBMS) is the software that controls organization, storage, and retrieval of data. To undertake these roles, database management systems require:
- Kernel codes – that manage memory plus the storage of the DBMS.
- Repository of metadata – also called the data dictionary.
- Query language – that makes it possible for the different applications to access.
For these elements to perform their roles as effectively as they should, you need to have the right people running things or checking to ensure that all roles are fulfilled. These are the Oracle administration users. They include:
- Database administrators (DBA)
Each Oracle needs at least one DBA since the Oracle database system can be large with many users. In such cases, there will be a number of database administrators. The roles of DBAs include:
- Allocation of system storage and making plans for possible future storage requirements.
- Installations and upgrades to the Oracle database server and their application tools.
- Creation of primary database structures, also called tablespoons. This is done after the development of applications by the application developers.
- Creation of primary objects like indexes, tables, or views, clusters, sequences, packages, or procedures after the development of applications by the development teams.
- Modifying database structures as necessary and as per the instructions given by the application developers.
- Enrolling users and maintaining system security.
- Maintenance and optimization of the performance of databases.
- Controlling and monitoring users’ access to data.
- Ensuring that all systems comply with Oracle’s licensing agreements.
- Maintaining all archived data on tape.
- Making plans for backups and recovery and restoration of database information.
- Getting in touch with Oracle for any and all technical support.
- Evaluation of release of Oracle and its tools. This includes monitoring third party products to ensure that they are appropriate.
- Performing database reorganizations when required to improve performance, ensuring maximum uptime of the databases.
- Controlling migration of programs, changes in databases, referencing the data changes, and the menu changes through the system’s development life cycle.
- Installation of new Oracle RDBMS versions and their tools as well as other tools that require access to the Oracle databases.
- Creation and maintenance of all the databases required for the development, education, testing, and production usage.
Provision of technical support to the application development tools. They do this by acting or serving as the help desks. DBAs are Oracle’s first point of contact.
- Assist with main impact analysis and changes made to database objects.
- Management of resource sharing for the varied applications.
- DBAs hold the ultimate role for decisions on the database’s physical design.
The ability of a DBA to undertake these roles depends on not only the education level but also skills. The most efficient and successful DBA possess the following skills:
The best DBAs have an extensive knowledge of Oracle’s operating systems and physical database designs. They are also well-versed in Oracle’s system management, acquisition and management or resources, applications on a site, data integrity enforcement procedures, performance tuning for databases and program codes, and migration codes or database changes.
To perform all the tasks above, a DBA must gain the experience needed to perform these tasks; experience in migration codes, database changes, monitoring and adjustments for Oracle and their operating systems. Knowledge is invaluable for experience in the roles highlighted above.
As mentioned above, database administrators are Oracle’s first point of communication. This means that the DBA must possess excellent communication skills. The communication skills are also handy in dealing with the management, vendors, development teams, system administrators or Oracle consultants.
- Application developers
These are the individuals who design and implement database applications. They have the following roles:
- Design and development of application designs and database structures for applications
- Estimating applications’ storage requirements
- Giving specifics on modifications to an application’s structure and relaying the information to the database administrators.
- Performance tuning of applications
- Establishing the security requirements and measures for applications during the development process.
Application developers often perform these tasks in collaboration with DBAs.
- Security officers
There are cases where the site assigns at least one security officer to a database. A security officer undertakes the role of user enrollment, control and monitoring of user access to databases, plus the maintenance of system security.These roles aren’t the DBAs’.
Other roles of security officers include;
- management of security for the application developers.
- Configuring role authorization and privileges
- Using application contexts to retrieve user information
- Developing applications using data encryption API.
- Verifying all security access through audits.
- Network administrators
These are the individuals responsible for administering Oracle’s products. One of these products is net. Network administrators are responsible for network planning, configuring naming methods and dispatchers, optimizing performance, administering and configuring Oracle Ner Listener or Connection Manager.
Network administrators are also responsible for testing and troubleshooting Oracle Net Services.
It is also the role of network administrators to enable advanced features of Oracle Net Services.
- Application administrators
These are Oracle’s administration users whose role is application administration. In intensive cases and areas, every application has an administrator. The main roles of application administrators include:
- Management of service links to the Manage Services page. This page is used to manage log files, schema requests, session state, service termination, storage requests, preferences, schema reports, and application models
- Management of application express user accounts and groups
- Monitoring activity links on the monitor activity page
- Changing password links
- Database users
Database users interact with databases through utilities and applications. The main roles of a typical user include:
- Data entry, modification, or deletion, where it’s permitted.
- Generation of reports from available or entered data.
In conclusion, Oracles’ administration users keep the whole RDBMS. The relational database management systems are either logical or operational with applications specifying the what content and the process or procedures applicable respectively. These roles are only undertaken by experienced and knowledgeable professionals. To learn more about Oracle consultants and the roles of administrators, check Oracle’s website.