Software Training Institute in Chennai with 100% Placements – SLA Institute

Easy way to IT Job

Share on your Social Media

What is Oracle?

Published On: December 3, 2022


Oracle is a relational database management system developed by Oracle Corporation. Database management systems like RDBMS may accommodate numerous data models. Standard, Enterprise, Express, and Personal editions are only a few of the available product variations. Products developed by Oracle are reliable, safe, and fast.

A Database : what is it?

The term “database” is used to describe a collection of related, structured pieces of information that have been saved in a digital format. It’s convenient for quick data access, management, and retrieval. Before the database system was developed, the flat file structure was commonly utilized to store information. The elimination of unnecessary data is a major selling point for the relational database method over the flat file format. Let’s say, for the sake of argument, that we keep employee and contact data in the same file. Employees who are connected to numerous people in this company will be listed in multiple columns.

When it comes to managing relational data, the RDBMS system is in charge. When compared to other RDBMSs, Oracle Database has the biggest market share, making it the most well-known. MySQL, DB2, SQL Server, PostgreSQL, etc. are all examples of other well-liked relational databases.Enroll in the best Oracle training in Chennai to earn exceptionally high by getting hired in a top MNC.

To start, let’s define the Oracle database.

Oracle database is a DBMS that uses the relational model. Additionally known as OracleDB and Oracle. Oracle Corporation is responsible for production and distribution. Lawrence Ellison and a team of engineers came up with it in 1977. When it comes to storing, organizing, and retrieving information, it is one of the most widely used relational database engines in the IT industry.

When it comes to enterprise grid computing and data warehousing, Oracle was the first DB to be built for the purpose. One of the most adaptable and economical methods of handling data and programs is through the use of enterprise grid computing. To communicate with the database, it employs the standard SQL query language.

The Evolution of Oracle

Oracle Corporation was established in August of 1977 by Lawrence Ellison (Larry Ellison), Bob Miner, Ed Oates, and Bruce Scott. They have extensive experience in the field of database program development, having completed their first project (a unique database program) for the Central Intelligence Agency (CIA) (Central Intelligence Agency). Oracle was designed by a corporation called Systems Development Labs for a client called the Central Intelligence Agency, hence the name (SDL). In 1978, to reach a wider audience with their new database, Systems Development Labs changed its name to Relational Software Inc. (RSI). In 1982, the corporation went through another name change, this time to Oracle Systems Corporation from RSI. Sign up for an Oracle course in Chennai to master these database features.

  • Oracle V2 (Version 2), the first commercially available relational database management system, was developed using PDP-11 assembly language (SQL-based RDBMS). Their commercial RDBMS was finished in 1977, but it wasn’t made available until Oracle 2 came out in 1979.
  • Oracle Version 3 (also known as the portable Oracle database) was introduced in 1983. It was the C programming language that was used to create this version. As the first relational database, it is compatible with virtually any computing platform that includes a C compiler, including mainframes, minicomputers, personal computers, and more. Additionally, SQL searches and transactions can be executed.
  • Oracle 4, launched in 1984, added support for transactions (including Commit and Rollback), export/import functions, and a report writer.
  • Released in 1985, Oracle 5 allowed for the use of the Client-Server design pattern. With this innovative function, client software can be linked to a remote database server over a network connection.
  • The PL/SQL programming language was officially supported by Oracle 6 in 1989. Features like online transaction processing (OLTP) speed, hot backup, and row-level locking are brand-new additions.
  • Released in 1992, Oracle 7 was a major upgrade for the database system. After two years of beta testing and four years of development, this final edition is finally available to the public. Security, administration, development, and performance are all areas where it saw exciting new features and capabilities implemented.
  • Oracle 8 was made available in 1997. Oracle Relational Database Management System (ORDBMS) support is included in this release (NC). It also included OLTP, Java, and HTML capabilities.
  • Oracle 8i came out in 1998. In this context, “I” refers to the internet. It was the first version of the database to fully incorporate features like Java and HTTP.
  • When Oracle 9i was released in 2001, it introduced 400 new features like XML support, Real Application Clusters (RAC), and more. These additions help keep your database lean while also increasing its availability and speed.
  • Oracle 10g, including grid computing technology, was released in 2003. It was the first release to work with a 64-bit LINUX distribution.
  • Oracle 11g came out in 2006. Oracle Database Replay, Log Miner-based Transaction Management, Virtual Column Partitioning, Case-sensitive Passwords, Online Patching, and RMAN-based Parallel Backups of the Same File Are Just a Few of the New Features in This Release.
  • Oracle 12C, which is compatible with the Cloud, was released in July 2014.
  • In February 2018, Oracle published version 18 C. This release marked the debut of the first

The Oracle Corporation

Oracle Corporation is the industry leader in the creation and distribution of enterprise-grade computer programs. Oracle database systems and, more recently, cloud goods and services have brought the corporation widespread recognition. It was the first relational database to implement SQL, which is now the de facto standard.

You can put your trust in the Oracle database, as it is one of the most popular relational database engines. The Microsoft SQL Server database is Oracle’s main competitor.

Oracle database editions

Oracle Database can run on a broad variety of operating systems, including Windows, UNIX, Linux, and macOS. Many OSes are compatible with it, including IBM AIX, HP-UX, Linux, Windows Server, Solaris, SunOS, macOS, and more. Oracle’s support for open platforms like GNU/Linux date back to the late ’90s.

Oracle’s database editions are listed below, from most important to least.

Enterprise Edition : The most secure and robust edition available. Performance and safety are both top-notch, and you can have it all with them.

Standard Edition : It provides the fundamental capabilities for users who do not require the full Enterprise Edition bundle.

Express Edition (XE) : This edition of Windows and Linux is lightweight, freeware, and restricted.

Oracle Lite : It was created with mobile devices in mind.

Personal Edition : Similar to the Enterprise Edition, except without the Oracle Real Application Clusters functionality. 

The Significance of Oracle

It is one of the oldest companies in the world that specializes in database administration. It has always prioritized the requirements of businesses and remained current with the most recent advances in technology. Because of this, the company’s goods are continually improved through the addition of new capabilities. For instance, the most up-to-date version of the Oracle database, known as 19C, can be accessed through Oracle Cloud. Oracle provides consumers with the ability to select from a variety of database editions to match the specific requirements of their business at an affordable price. Join Oracle training in Chennai today and enlighten your future.


The following capabilities are made available by an Oracle database in order to fulfill the criteria of effective database management:

Scalability and Effectiveness

Features such as Real Application Clustering and Portability are what makes a database scalable in relation to the workload it receives. Oracle takes into consideration the need to control data consistency and concurrency in a multiuser database. This need arises because of Oracle’s design. Enroll in SLA, the top Oracle training institute in Chennai to become a Pro in Oracle database.


Availability is a crucial factor for real-time applications, which demand a high level of it. Computing environments that function exceptionally well are set up to guarantee the availability of data at all times. Data is accessible at all times, including during scheduled and unscheduled maintenance and system breakdowns.

Backup and Recovery

The design of this system includes comprehensive recovery mechanisms that can rescue data in the event of practically any form of malfunction. In the event of a failure, the database must be recovered in the shortest amount of time possible to ensure high availability. The portions of the data that were not affected by the issue are accessible while the affected portions are being retrieved.


Data safety has always been and will continue to be our top focus. It provides systems that can regulate data access as well as how the data is utilized. It is possible to prevent unwanted access and allow distinct access for users by implementing authorization and changing user activities. Learn an Oracle course in Chennai at SLA and avail yourself of the placement assistance offered there to succeed in your career.


We have discussed the characteristics of its database thus far. Oracle has an advantage over its other rivals as a result of these qualities. Now, let’s have a look at some of the benefits.


Oracle provides us with techniques and principles that assist us in achieving high levels of database performance, and this is referred to as “performance.” By implementing performance optimization strategies within the database, we may shorten the amount of time it takes for queries to be executed and increase the number of operations. The data may be retrieved and modified more quickly with the help of this method.


Unlike any of Oracle’s other databases, the Oracle database can run on a wider variety of systems than any of its rivals. This database is compatible with approximately 20 different networking protocols and more than 100 different hardware systems. This database makes it straightforward to develop an Oracle application by facilitating the safe modification of both the operating system and the hardware.

Oracle Online Backup and Recovery

It is always best to take a proper backup of your complete database as soon as possible. Utilizing Oracle’s database’s built-in tools makes it simple to complete recovery in a timely manner. RMAN functionality, which stands for Recovery Manager. During periods of downtime or outages, it is able to recover or restore database files. It is possible to use it for both online backups and archived backups, in addition to continuous archiving. We also have the option of utilizing user-managed recovery, which is known as SQL* PLUS for recovery. Join the best oracle training institute in Chennai at SLA and emerge an efficient programmer.


The fact that the Oracle database supports the PL/SQL extension for procedural programming is one of the most significant advantages of utilizing the Oracle database.

Multiple Databases

Oracle Database permits the management of several database instances on a single server through its support of multiple databases. It offers a method known as instance caging for managing CPU allocations on a server that is hosting database instances. Database resource management and instance caging are two separate processes, but they can collaborate to manage services across numerous instances.

Flashback Technology

This benefit is included with the most recent version of Oracle software.It makes it possible for us to recover data that was deleted in error or that was lost as a result of human error, such as the inadvertent deletion of valuable data, the deletion of the wrong data, or the dropping of the table. Become Job ready by enrolling in the best Oracle training in Chennai and secure your future prospects at SLA.

The Oracle Database’s Drawbacks and Limitations

  • The following are some of the drawbacks associated with using an Oracle database:
  • Because of its complexity, Oracle should not be used when the users lack the technical expertise and restricted technical abilities required to work with the Oracle Database. It is not suggested that users utilize Oracle. It is also not recommended to use if the organization is searching for a database that has a small number of functions but is simple to operate.
  • The cost of Oracle products is quite high compared to the costs of alternative database management systems. Because of this, customers are more inclined to go with alternatives that are cheaper, such as Microsoft SQL Server, MySQL, and so on.
  • Oracle databases are typically far more difficult to maintain due to their increased complexity and level of difficulty in relation to the management of particular operations.

Why Do We Rely on Oracle Software?

It is a piece of software designed for managing databases. A database stores a collection of information in a structured and ordered fashion. In order to store the data and provide other characteristics such as high performance and allowed access as well as failure recovery, a database management system is utilized. It offers a software solution that is simple to operate and manages database activities, and it can be used for applications ranging from personal to enterprise level.


We are able to draw the conclusion that Oracle is a robust piece of software for managing database servers that can also meet the requirements of small-level applications as well as enterprise-level applications. It is extremely popular and incorporates practically all of the capabilities that are necessary to provide support for modern applications. Get trained in the best Oracle training institute in Chennai and get hired by a top IT firm.

Share on your Social Media

Just a minute!

If you have any questions that you did not find answers for, our counsellors are here to answer them. You can get all your queries answered before deciding to join SLA and move your career forward.

We are excited to get started with you

Give us your information and we will arange for a free call (at your convenience) with one of our counsellors. You can get all your queries answered before deciding to join SLA and move your career forward.