Oracle DBA
Oracle database is a relational database management system (RDBMS) from Oracle Corporation. It is one of the most popular relational database engines in the IT market for storing, organizing, and retrieving data.
Oracle database was the first DB that designed for enterprise grid computing and data warehousing. Enterprise grid computing provides the most flexible and cost-effective way to manage information and applications. It uses SQL queries as a language for interacting with the database.
Oracle database is compatible with a wide range of platforms such as Windows, UNIX, Linux, and macOS. It supports several operating systems like IBM AIX, HP-UX, Linux, Microsoft Windows Server, Solaris, SunOS, macOS, etc. In the late 1990s, Oracle began supporting open platforms like GNU/Linux.
Importance of Oracle
It is one of the oldest database management companies in the world. It has always focused on enterprise needs and kept up with the newest technological developments. As a result, its products are constantly updated with new features. For example, the most recent Oracle database, 19C, is also available on Oracle Cloud. Oracle allows users to select from various database editions to meet their specific demands with a cost-effective solution.
Oracle
Availability: It is never offline or out of service that means supported 24*7 availability of the database. It provides high availability of databases because of the Oracle Data Guard functionality.
Security: Oracle has a mechanism for controlling and accessing the database to prevent unauthorized access. It provides high security because of the Oracle Advanced Security features.
Scalability: It provides features like RAC (Real Application Cluster) and Portability, which makes an Oracle database scalable based on usage.
Performance: Oracle provides performance optimization tools such as Oracle Advanced Compression, Oracle Database In-Memory, Oracle Real Application Testing, and Oracle Times Ten Application-Tier Database Cache. Their main objective is to improve system performance to the highest possible level.
Analytics: Oracle has the following solutions in the field of analytics:
- OLAP (Oracle Analytic Processing): It is an implementation of Oracle for doing complicated analytical calculations on business data.
- Oracle Advanced Analytics: It is a technical combination of Oracle R Enterprise and Oracle Data Mining that assists customers in determining predictive business models through data and text mining, as well as statistical data computation.
Oracle DBA
Performance: Oracle has procedures and principles that help us to get high levels of database performance. We can increase query execution time and operations with the use of performance optimization techniques in its database.
Portability: The Oracle database can be ported on all different platforms than any of its competitors. We can use this database on around 20 networking protocols as well as over 100 hardware platforms.
Backup and Recovery: The Oracle database makes it easy to accomplish recovery quickly by using the. RMAN (Recovery Manager) functionality. It can recover or restore database files during downtime or outages. It can be used for online backups, archived backups, and continuous archiving.
PL/SQL: One of the greatest benefits of using the Oracle database is to support PL/SQL extension for procedural programming.
Multiple Database: Oracle database allows several database instances management on a single server. It provides an instance caging approach for managing CPU allocations on a server hosting database instances. The database resource management and instance caging can work together to manage services across multiple instances.
Flashback Technology: This advantage comes with the recent Oracle version. It allows us to recover those data that are incorrectly deleted or lost by human errors like accidental deletion of valuable data, deleting the wrong data, or dropping the table.
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