Introduction to Oracle
Oracle is a product from Oracle corporation that provides a relational database management system. RDBMS supports any kind of data model. It has different product editions, including Standard Edition, Enterprise Edition, Express Edition, and Personal Edition. Oracle products are scalable and secure, with high-performance ability.
What is Oracle?
Its database is also known as Oracle. It is a multi-model relational database management system, mainly designed for enterprise grid computing and data warehousing.
Its database currently comes in five different editions based on the available features.
- Standard Edition One: It is suitable for single-server or highly branched business applications with limited features.
- Standard Edition: It delivers all facilities provided in Standard Edition One. In addition, it provides larger machine support and Oracle Real Application clustering service.
- Enterprise Edition: This edition is packed with features like security, performance, scalability, and availability, required for highly-critical applications in which online transaction processing is involved.
- Express Edition: It is an entry-level edition that is free to download, install, manage, develop and deploy.
- Personal Edition: It comes with the same Enterprise edition features except Oracle Real Application Clustering.
An Oracle database offers the following features to meet the requirements of powerful database management:
- Scalability and Performance: Features like Real Application Clustering and Portability make a database scalable according to its usage. In a multiuser database, it is required to control data consistency and concurrency which Oracle contemplates.
- Availability: Real-time applications require high data availability. High-performing computing environments are configured to provide all-time data availability. Data is available during the time of planned or unplanned downtimes and failures.
- Backup and Recovery: Its layout has complete recovery features to recover data from almost all kinds of failures. In case of failure, the database needs to be recovered within no time for high availability. Unaffected parts of data are available while the affected ones are getting recovered.
- Security: Securing the data is always the top priority. It provides mechanisms to control data access and usage. Implementing authorization and editing user actions can prevent unauthorized access and allow distinct access to the users.
Importance of Oracle
It is among the oldest companies which provide database management solutions. The company has always focused on Enterprise requirements and acknowledged the latest technology trends. That’s why its products are always embellished with new features. For instance, the latest Oracle database 19C is also available on Oracle Cloud. It offers users to choose from the different database editions that suit their needs to provide a cost-effective solution.
We have talked about the features of its database. These features give Oracle an edge over other competitors. Now, we will look at the advantages.
1. Performance: It has methodologies and principles to achieve high performance. We can implement performance tuning in its database to retrieve and alter data faster, in order to improve query execution time and hence application operations.
2. Multiple Database: Its database supports managing multiple database instances on a single server. It provides an Instance Caging method to manage CPU allocations on a server running the database instances. Instance caging works with the database resource manager to manage services over multiple instances.
3. Editions: As we discussed above, about the different editions Oracle offers, it benefits the users to purchase editions as per their application requirements. They can seamlessly update the edition if their requirements change in the future. If you want to learn and do some hands-on Oracle, you can download and install the express edition database which is absolutely free.
4. Clusters: It uses Real Application Clusters to provide a high data availability system. The database with RAC has benefits over traditional database servers :
- Scaling the database over multiple instances.
- Load balancing
- Data redundancy and availability
- Flexible to increase processing capacity
5. Failure Recovery: RMAN (Recovery Manager) is the feature of an Oracle DB which recover or restore the database files during downtimes and outages. It supports online, archived backups and continuous archiving. Users can also SQL* PLUS for recovery, called user-managed recovery, which is supported by it. There is an export utility available in the database to add user-managed backups.
6. PL/SQL: The database supports PL/SQL extension for procedural programming.
Why do We Use Oracle?
It is a database management software product. A database contains an organized collection of information. A database management system is used for storing the data and providing high performance, authorized access, and failure recovery features. It provides a software solution that is easy to use and manages database operations, from Personal to Enterprise level applications.
We can conclude that Oracle is a powerful database server management software that can also serve the requirements of Enterprise level and small-level applications. It includes almost all the features required to support modern applications and is widely used.
This is a guide to What is Oracle? Here we have discussed how do we use oracle, its features, importance, and benefits. You may also look at the following articles to learn more –
- Inner Join in Oracle
- Select in Oracle
- Joins in Oracle
- Relational Database | Accessing SQL Data with R
- Top 7 Oracle Operators (Examples)
- Guide to Concept of Relational Database Model
- Top 8 Relational Database Advantages